57456331 has 2 divisors, whose sum is σ = 57456332. Its totient is φ = 57456330.

The previous prime is 57456283. The next prime is 57456349. The reversal of 57456331 is 13365475.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57456331 - 2¹⁷ = 57325259 is a prime.

It is a super-2 number, since 2×57456331² = 6602459943963122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57456031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28728165 + 28728166.

It is an arithmetic number, because the mean of its divisors is an integer number (28728166).

Almost surely, 2^57456331 is an apocalyptic number.

57456331 is a deficient number, since it is larger than the sum of its proper divisors (1).

57456331 is an equidigital number, since it uses as much as digits as its factorization.

57456331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 34.

The square root of 57456331 is about 7579.9954485474. The cubic root of 57456331 is about 385.8743964784.

The spelling of 57456331 in words is "fifty-seven million, four hundred fifty-six thousand, three hundred thirty-one".