57385369 has 2 divisors, whose sum is σ = 57385370. Its totient is φ = 57385368.

The previous prime is 57385351. The next prime is 57385381. The reversal of 57385369 is 96358375.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37027225 + 20358144 = 6085^2 + 4512^2 .

It is a cyclic number.

It is not a de Polignac number, because 57385369 - 2⁷ = 57385241 is a prime.

It is a super-2 number, since 2×57385369² = 6586161150532322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57386369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28692684 + 28692685.

It is an arithmetic number, because the mean of its divisors is an integer number (28692685).

Almost surely, 2^57385369 is an apocalyptic number.

It is an amenable number.

57385369 is a deficient number, since it is larger than the sum of its proper divisors (1).

57385369 is an equidigital number, since it uses as much as digits as its factorization.

57385369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 46.

The square root of 57385369 is about 7575.3131288416. The cubic root of 57385369 is about 385.7154717254.

The spelling of 57385369 in words is "fifty-seven million, three hundred eighty-five thousand, three hundred sixty-nine".