57052631 has 4 divisors (see below), whose sum is σ = 58594632. Its totient is φ = 55510632.

The previous prime is 57052621. The next prime is 57052643. The reversal of 57052631 is 13625075.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57052631 is a prime.

It is a super-2 number, since 2×57052631² = 6510005408044322, 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 = 57052594 and 57052603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57052601) 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, 770945 + ... + 771018.

It is an arithmetic number, because the mean of its divisors is an integer number (14648658).

Almost surely, 2^57052631 is an apocalyptic number.

57052631 is a deficient number, since it is larger than the sum of its proper divisors (1542001).

57052631 is a wasteful number, since it uses less digits than its factorization.

57052631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542000.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 57052631 is about 7553.3192041645. The cubic root of 57052631 is about 384.9685272524.

The spelling of 57052631 in words is "fifty-seven million, fifty-two thousand, six hundred thirty-one".