56940517 has 2 divisors, whose sum is σ = 56940518. Its totient is φ = 56940516.

The previous prime is 56940503. The next prime is 56940539. The reversal of 56940517 is 71504965.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47692836 + 9247681 = 6906^2 + 3041^2 .

It is a cyclic number.

It is not a de Polignac number, because 56940517 - 2¹⁵ = 56907749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56943517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28470258 + 28470259.

It is an arithmetic number, because the mean of its divisors is an integer number (28470259).

Almost surely, 2^56940517 is an apocalyptic number.

It is an amenable number.

56940517 is a deficient number, since it is larger than the sum of its proper divisors (1).

56940517 is an equidigital number, since it uses as much as digits as its factorization.

56940517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 56940517 is about 7545.8940490839. The cubic root of 56940517 is about 384.7161949582.

The spelling of 56940517 in words is "fifty-six million, nine hundred forty thousand, five hundred seventeen".