57012631 has 8 divisors (see below), whose sum is σ = 61768224. Its totient is φ = 52309920.

The previous prime is 57012601. The next prime is 57012707. The reversal of 57012631 is 13621075.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57012631 - 2²¹ = 54915479 is a prime.

It is a super-2 number, since 2×57012631² = 6500880187084322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57012596 and 57012605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57012601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10960 + ... + 15301.

It is an arithmetic number, because the mean of its divisors is an integer number (7721028).

Almost surely, 2^57012631 is an apocalyptic number.

57012631 is a deficient number, since it is larger than the sum of its proper divisors (4755593).

57012631 is a wasteful number, since it uses less digits than its factorization.

57012631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26441.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 57012631 is about 7550.6708973442. The cubic root of 57012631 is about 384.8785381731.

The spelling of 57012631 in words is "fifty-seven million, twelve thousand, six hundred thirty-one".