57855697 has 2 divisors, whose sum is σ = 57855698. Its totient is φ = 57855696.

The previous prime is 57855689. The next prime is 57855719. The reversal of 57855697 is 79655875.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57214096 + 641601 = 7564^2 + 801^2 .

It is a cyclic number.

It is not a de Polignac number, because 57855697 - 2³ = 57855689 is a prime.

It is not a weakly prime, because it can be changed into another prime (57855617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28927848 + 28927849.

It is an arithmetic number, because the mean of its divisors is an integer number (28927849).

Almost surely, 2^57855697 is an apocalyptic number.

It is an amenable number.

57855697 is a deficient number, since it is larger than the sum of its proper divisors (1).

57855697 is an equidigital number, since it uses as much as digits as its factorization.

57855697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2646000, while the sum is 52.

The square root of 57855697 is about 7606.2932496716. The cubic root of 57855697 is about 386.7663749833.

The spelling of 57855697 in words is "fifty-seven million, eight hundred fifty-five thousand, six hundred ninety-seven".