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57243875 = 531335227
BaseRepresentation
bin1101101001011…
…1100011100011
310222201021211112
43122113203203
5104123301000
65402533535
71263364523
oct332274343
9128637745
1057243875
112a349197
12172072ab
13bb23620
147861683
15505b235
hex36978e3

57243875 has 16 divisors (see below), whose sum is σ = 76937952. Its totient is φ = 42271200.

The previous prime is 57243859. The next prime is 57243889. The reversal of 57243875 is 57834275.

It is not a de Polignac number, because 57243875 - 24 = 57243859 is a prime.

It is a super-2 number, since 2×572438752 = 6553722450031250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15989 + ... + 19238.

It is an arithmetic number, because the mean of its divisors is an integer number (4808622).

Almost surely, 257243875 is an apocalyptic number.

57243875 is a deficient number, since it is larger than the sum of its proper divisors (19694077).

57243875 is a wasteful number, since it uses less digits than its factorization.

57243875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35255 (or 35245 counting only the distinct ones).

The product of its digits is 235200, while the sum is 41.

The square root of 57243875 is about 7565.9682129916. The cubic root of 57243875 is about 385.3981937417.

The spelling of 57243875 in words is "fifty-seven million, two hundred forty-three thousand, eight hundred seventy-five".

Divisors: 1 5 13 25 65 125 325 1625 35227 176135 457951 880675 2289755 4403375 11448775 57243875