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57485925 = 325271719113
BaseRepresentation
bin1101101101001…
…0101001100101
311000011120212100
43123102221211
5104204022200
65412042313
71265423310
oct333225145
9130146770
1057485925
112a4a4032
1217303399
13bba9853
1478c5977
1550a7d00
hex36d2a65

57485925 has 144 divisors (see below), whose sum is σ = 132312960. Its totient is φ = 23224320.

The previous prime is 57485921. The next prime is 57485929. The reversal of 57485925 is 52958475.

57485925 is a `hidden beast` number, since 57 + 4 + 8 + 592 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (57485921) and next prime (57485929).

It is not a de Polignac number, because 57485925 - 22 = 57485921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57485921) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 508669 + ... + 508781.

It is an arithmetic number, because the mean of its divisors is an integer number (918840).

Almost surely, 257485925 is an apocalyptic number.

It is an amenable number.

57485925 is an abundant number, since it is smaller than the sum of its proper divisors (74827035).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57485925 is a wasteful number, since it uses less digits than its factorization.

57485925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 164 counting only the distinct ones).

The product of its digits is 504000, while the sum is 45.

The square root of 57485925 is about 7581.9473092340. The cubic root of 57485925 is about 385.9406358097.

The spelling of 57485925 in words is "fifty-seven million, four hundred eighty-five thousand, nine hundred twenty-five".

Divisors: 1 3 5 7 9 15 17 19 21 25 35 45 51 57 63 75 85 95 105 113 119 133 153 171 175 225 255 285 315 323 339 357 399 425 475 525 565 595 665 765 791 855 969 1017 1071 1197 1275 1425 1575 1615 1695 1785 1921 1995 2147 2261 2373 2825 2907 2975 3325 3825 3955 4275 4845 5085 5355 5763 5985 6441 6783 7119 8075 8475 8925 9605 9975 10735 11305 11865 13447 14535 15029 17289 19323 19775 20349 24225 25425 26775 28815 29925 32205 33915 35595 36499 40341 45087 48025 53675 56525 59325 67235 72675 75145 86445 96615 101745 109497 121023 135261 144075 161025 169575 177975 182495 201705 225435 255493 328491 336175 375725 432225 483075 508725 547485 605115 676305 766479 912475 1008525 1127175 1277465 1642455 2299437 2737425 3025575 3381525 3832395 6387325 8212275 11497185 19161975 57485925