57345569 has 2 divisors, whose sum is σ = 57345570. Its totient is φ = 57345568.

The previous prime is 57345503. The next prime is 57345571. The reversal of 57345569 is 96554375.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55056400 + 2289169 = 7420^2 + 1513^2 .

It is a cyclic number.

It is not a de Polignac number, because 57345569 - 2²⁰ = 56296993 is a prime.

It is a super-2 number, since 2×57345569² = 6577028567867522, which contains 22 as substring.

Together with 57345571, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57345599) 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, 28672784 + 28672785.

It is an arithmetic number, because the mean of its divisors is an integer number (28672785).

Almost surely, 2^57345569 is an apocalyptic number.

It is an amenable number.

57345569 is a deficient number, since it is larger than the sum of its proper divisors (1).

57345569 is an equidigital number, since it uses as much as digits as its factorization.

57345569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 567000, while the sum is 44.

The square root of 57345569 is about 7572.6857190828. The cubic root of 57345569 is about 385.6262792683.

The spelling of 57345569 in words is "fifty-seven million, three hundred forty-five thousand, five hundred sixty-nine".