57550897 has 2 divisors, whose sum is σ = 57550898. Its totient is φ = 57550896.

The previous prime is 57550891. The next prime is 57550957. The reversal of 57550897 is 79805575.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36675136 + 20875761 = 6056^2 + 4569^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57550897 is a prime.

It is not a weakly prime, because it can be changed into another prime (57550891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28775448 + 28775449.

It is an arithmetic number, because the mean of its divisors is an integer number (28775449).

Almost surely, 2^57550897 is an apocalyptic number.

It is an amenable number.

57550897 is a deficient number, since it is larger than the sum of its proper divisors (1).

57550897 is an equidigital number, since it uses as much as digits as its factorization.

57550897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 441000, while the sum is 46.

The square root of 57550897 is about 7586.2307505111. The cubic root of 57550897 is about 386.0859809180.

The spelling of 57550897 in words is "fifty-seven million, five hundred fifty thousand, eight hundred ninety-seven".