57711457 has 2 divisors, whose sum is σ = 57711458. Its totient is φ = 57711456.

The previous prime is 57711449. The next prime is 57711463. The reversal of 57711457 is 75411775.

57711457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31404816 + 26306641 = 5604^2 + 5129^2 .

It is a cyclic number.

It is not a de Polignac number, because 57711457 - 2³ = 57711449 is a prime.

It is a super-2 number, since 2×57711457² = 6661224538125698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57711257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28855728 + 28855729.

It is an arithmetic number, because the mean of its divisors is an integer number (28855729).

Almost surely, 2^57711457 is an apocalyptic number.

It is an amenable number.

57711457 is a deficient number, since it is larger than the sum of its proper divisors (1).

57711457 is an equidigital number, since it uses as much as digits as its factorization.

57711457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34300, while the sum is 37.

The square root of 57711457 is about 7596.8057102969. The cubic root of 57711457 is about 386.4446918409. Note that the first 3 decimals are identical.

The spelling of 57711457 in words is "fifty-seven million, seven hundred eleven thousand, four hundred fifty-seven".