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57552885 = 32513131751
BaseRepresentation
bin1101101110001…
…0111111110101
311000021222201100
43123202333311
5104213143020
65413320313
71266122445
oct333427765
9130258640
1057552885
112a53a375
1217336099
13bc01180
147902125
1550bca90
hex36e2ff5

57552885 has 48 divisors (see below), whose sum is σ = 108396288. Its totient is φ = 28080000.

The previous prime is 57552857. The next prime is 57552893. The reversal of 57552885 is 58825575.

It is not a de Polignac number, because 57552885 - 29 = 57552373 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 57552885.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76260 + ... + 77010.

It is an arithmetic number, because the mean of its divisors is an integer number (2258256).

Almost surely, 257552885 is an apocalyptic number.

It is an amenable number.

57552885 is a deficient number, since it is larger than the sum of its proper divisors (50843403).

57552885 is a wasteful number, since it uses less digits than its factorization.

57552885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906 (or 903 counting only the distinct ones).

The product of its digits is 560000, while the sum is 45.

The square root of 57552885 is about 7586.3617762403. The cubic root of 57552885 is about 386.0904264328.

The spelling of 57552885 in words is "fifty-seven million, five hundred fifty-two thousand, eight hundred eighty-five".

Divisors: 1 3 5 9 13 15 39 45 65 117 131 195 393 585 655 751 1179 1703 1965 2253 3755 5109 5895 6759 8515 9763 11265 15327 25545 29289 33795 48815 76635 87867 98381 146445 295143 439335 491905 885429 1278953 1475715 3836859 4427145 6394765 11510577 19184295 57552885