57423881 has 2 divisors, whose sum is σ = 57423882. Its totient is φ = 57423880.

The previous prime is 57423859. The next prime is 57423887. The reversal of 57423881 is 18832475.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39488656 + 17935225 = 6284^2 + 4235^2 .

It is a cyclic number.

It is not a de Polignac number, because 57423881 - 2²² = 53229577 is a prime.

It is a super-2 number, since 2×57423881² = 6595004218204322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57423887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28711940 + 28711941.

It is an arithmetic number, because the mean of its divisors is an integer number (28711941).

Almost surely, 2^57423881 is an apocalyptic number.

It is an amenable number.

57423881 is a deficient number, since it is larger than the sum of its proper divisors (1).

57423881 is an equidigital number, since it uses as much as digits as its factorization.

57423881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 38.

The square root of 57423881 is about 7577.8546436310. The cubic root of 57423881 is about 385.8017385021.

The spelling of 57423881 in words is "fifty-seven million, four hundred twenty-three thousand, eight hundred eighty-one".