57522431 has 2 divisors, whose sum is σ = 57522432. Its totient is φ = 57522430.

The previous prime is 57522427. The next prime is 57522449. The reversal of 57522431 is 13422575.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57522431 - 2² = 57522427 is a prime.

It is a super-2 number, since 2×57522431² = 6617660136299522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 57522394 and 57522403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57522401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28761215 + 28761216.

It is an arithmetic number, because the mean of its divisors is an integer number (28761216).

Almost surely, 2^57522431 is an apocalyptic number.

57522431 is a deficient number, since it is larger than the sum of its proper divisors (1).

57522431 is an equidigital number, since it uses as much as digits as its factorization.

57522431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 29.

The square root of 57522431 is about 7584.3543561730. The cubic root of 57522431 is about 386.0223147453.

The spelling of 57522431 in words is "fifty-seven million, five hundred twenty-two thousand, four hundred thirty-one".