56570057 has 2 divisors, whose sum is σ = 56570058. Its totient is φ = 56570056.

The previous prime is 56570053. The next prime is 56570089. The reversal of 56570057 is 75007565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55591936 + 978121 = 7456^2 + 989^2 .

It is a cyclic number.

It is not a de Polignac number, because 56570057 - 2² = 56570053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56569999 and 56570026.

It is not a weakly prime, because it can be changed into another prime (56570053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28285028 + 28285029.

It is an arithmetic number, because the mean of its divisors is an integer number (28285029).

Almost surely, 2^56570057 is an apocalyptic number.

It is an amenable number.

56570057 is a deficient number, since it is larger than the sum of its proper divisors (1).

56570057 is an equidigital number, since it uses as much as digits as its factorization.

56570057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36750, while the sum is 35.

The square root of 56570057 is about 7521.3068678256. The cubic root of 56570057 is about 383.8800465354.

The spelling of 56570057 in words is "fifty-six million, five hundred seventy thousand, fifty-seven".