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57487925 = 52112361149
BaseRepresentation
bin1101101101001…
…1001000110101
311000011200121102
43123103020311
5104204103200
65412055445
71265432165
oct333231065
9130150542
1057487925
112a4a5590
1217304585
13bbaa731
1478c65a5
1550a86d5
hex36d3235

57487925 has 48 divisors (see below), whose sum is σ = 83030400. Its totient is φ = 39072000.

The previous prime is 57487921. The next prime is 57487951. The reversal of 57487925 is 52978475.

It is a happy number.

It is not a de Polignac number, because 57487925 - 22 = 57487921 is a prime.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 57487925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57487921) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 385751 + ... + 385899.

It is an arithmetic number, because the mean of its divisors is an integer number (1729800).

Almost surely, 257487925 is an apocalyptic number.

57487925 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

57487925 is a deficient number, since it is larger than the sum of its proper divisors (25542475).

57487925 is a wasteful number, since it uses less digits than its factorization.

57487925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 249 counting only the distinct ones).

The product of its digits is 705600, while the sum is 47.

The square root of 57487925 is about 7582.0792003249. The cubic root of 57487925 is about 385.9451115274.

The spelling of 57487925 in words is "fifty-seven million, four hundred eighty-seven thousand, nine hundred twenty-five".

Divisors: 1 5 11 23 25 55 61 115 149 253 275 305 575 671 745 1265 1403 1525 1639 3355 3427 3725 6325 7015 8195 9089 15433 16775 17135 35075 37697 40975 45445 77165 85675 99979 188485 209047 227225 385825 499895 942425 1045235 2299517 2499475 5226175 11497585 57487925