56370817 has 2 divisors, whose sum is σ = 56370818. Its totient is φ = 56370816.

The previous prime is 56370773. The next prime is 56370823. The reversal of 56370817 is 71807365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39388176 + 16982641 = 6276^2 + 4121^2 .

It is a cyclic number.

It is not a de Polignac number, because 56370817 - 2⁷ = 56370689 is a prime.

It is not a weakly prime, because it can be changed into another prime (56370887) 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, 28185408 + 28185409.

It is an arithmetic number, because the mean of its divisors is an integer number (28185409).

Almost surely, 2^56370817 is an apocalyptic number.

It is an amenable number.

56370817 is a deficient number, since it is larger than the sum of its proper divisors (1).

56370817 is an equidigital number, since it uses as much as digits as its factorization.

56370817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 56370817 is about 7508.0501463429. The cubic root of 56370817 is about 383.4288406427.

The spelling of 56370817 in words is "fifty-six million, three hundred seventy thousand, eight hundred seventeen".