57455569 has 2 divisors, whose sum is σ = 57455570. Its totient is φ = 57455568.

The previous prime is 57455539. The next prime is 57455579. The reversal of 57455569 is 96555475.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54582544 + 2873025 = 7388^2 + 1695^2 .

It is a cyclic number.

It is not a de Polignac number, because 57455569 - 2¹⁷ = 57324497 is a prime.

It is a super-2 number, since 2×57455569² = 6602284818227522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57455539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28727784 + 28727785.

It is an arithmetic number, because the mean of its divisors is an integer number (28727785).

Almost surely, 2^57455569 is an apocalyptic number.

It is an amenable number.

57455569 is a deficient number, since it is larger than the sum of its proper divisors (1).

57455569 is an equidigital number, since it uses as much as digits as its factorization.

57455569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 945000, while the sum is 46.

The square root of 57455569 is about 7579.9451844984. The cubic root of 57455569 is about 385.8726906171.

The spelling of 57455569 in words is "fifty-seven million, four hundred fifty-five thousand, five hundred sixty-nine".