57623131 has 2 divisors, whose sum is σ = 57623132. Its totient is φ = 57623130.

The previous prime is 57623129. The next prime is 57623173. The reversal of 57623131 is 13132675.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57623131 - 2¹ = 57623129 is a prime.

It is a super-2 number, since 2×57623131² = 6640850452486322, which contains 22 as substring.

Together with 57623129, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57623131.

It is not a weakly prime, because it can be changed into another prime (57623191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28811565 + 28811566.

It is an arithmetic number, because the mean of its divisors is an integer number (28811566).

Almost surely, 2^57623131 is an apocalyptic number.

57623131 is a deficient number, since it is larger than the sum of its proper divisors (1).

57623131 is an equidigital number, since it uses as much as digits as its factorization.

57623131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 28.

The square root of 57623131 is about 7590.9901198724. The cubic root of 57623131 is about 386.2474430695.

The spelling of 57623131 in words is "fifty-seven million, six hundred twenty-three thousand, one hundred thirty-one".