56620015373 has 2 divisors, whose sum is σ = 56620015374. Its totient is φ = 56620015372.

The previous prime is 56620015327. The next prime is 56620015391. The reversal of 56620015373 is 37351002665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33665644324 + 22954371049 = 183482^2 + 151507^2 .

It is a cyclic number.

It is not a de Polignac number, because 56620015373 - 2¹⁰ = 56620014349 is a prime.

It is a super-2 number, since 2×56620015373² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56620015313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28310007686 + 28310007687.

It is an arithmetic number, because the mean of its divisors is an integer number (28310007687).

Almost surely, 2^56620015373 is an apocalyptic number.

It is an amenable number.

56620015373 is a deficient number, since it is larger than the sum of its proper divisors (1).

56620015373 is an equidigital number, since it uses as much as digits as its factorization.

56620015373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 38.

The spelling of 56620015373 in words is "fifty-six billion, six hundred twenty million, fifteen thousand, three hundred seventy-three".