57345031 has 2 divisors, whose sum is σ = 57345032. Its totient is φ = 57345030.

The previous prime is 57345023. The next prime is 57345037. The reversal of 57345031 is 13054375.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57345031 - 2³ = 57345023 is a prime.

It is a super-2 number, since 2×57345031² = 6576905160781922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57345037) 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, 28672515 + 28672516.

It is an arithmetic number, because the mean of its divisors is an integer number (28672516).

Almost surely, 2^57345031 is an apocalyptic number.

57345031 is a deficient number, since it is larger than the sum of its proper divisors (1).

57345031 is an equidigital number, since it uses as much as digits as its factorization.

57345031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 57345031 is about 7572.6501965956. The cubic root of 57345031 is about 385.6250733188.

The spelling of 57345031 in words is "fifty-seven million, three hundred forty-five thousand, thirty-one".