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57425631 = 319141877
BaseRepresentation
bin1101101100001…
…1111011011111
311000001112011020
43123003323133
5104200110011
65410455223
71265052444
oct333037337
9130045136
1057425631
112a4627aa
1217294513
13bb88283
1478ab9cb
155095006
hex36c3edf

57425631 has 4 divisors (see below), whose sum is σ = 76567512. Its totient is φ = 38283752.

The previous prime is 57425603. The next prime is 57425639. The reversal of 57425631 is 13652475.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57425631 - 26 = 57425567 is a prime.

It is a super-2 number, since 2×574256312 = 6595406191496322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57425592 and 57425601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57425639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9570936 + ... + 9570941.

It is an arithmetic number, because the mean of its divisors is an integer number (19141878).

Almost surely, 257425631 is an apocalyptic number.

57425631 is a deficient number, since it is larger than the sum of its proper divisors (19141881).

57425631 is a wasteful number, since it uses less digits than its factorization.

57425631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19141880.

The product of its digits is 25200, while the sum is 33.

The square root of 57425631 is about 7577.9701107882. The cubic root of 57425631 is about 385.8056575811.

The spelling of 57425631 in words is "fifty-seven million, four hundred twenty-five thousand, six hundred thirty-one".

Divisors: 1 3 19141877 57425631