56537017 has 2 divisors, whose sum is σ = 56537018. Its totient is φ = 56537016.

The previous prime is 56536993. The next prime is 56537021. The reversal of 56537017 is 71073565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54523456 + 2013561 = 7384^2 + 1419^2 .

It is a cyclic number.

It is not a de Polignac number, because 56537017 - 2⁷ = 56536889 is a prime.

It is not a weakly prime, because it can be changed into another prime (56537317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28268508 + 28268509.

It is an arithmetic number, because the mean of its divisors is an integer number (28268509).

Almost surely, 2^56537017 is an apocalyptic number.

It is an amenable number.

56537017 is a deficient number, since it is larger than the sum of its proper divisors (1).

56537017 is an equidigital number, since it uses as much as digits as its factorization.

56537017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22050, while the sum is 34.

The square root of 56537017 is about 7519.1101202203. The cubic root of 56537017 is about 383.8052963497.

The spelling of 56537017 in words is "fifty-six million, five hundred thirty-seven thousand, seventeen".