56600060581 has 2 divisors, whose sum is σ = 56600060582. Its totient is φ = 56600060580.

The previous prime is 56600060527. The next prime is 56600060611. The reversal of 56600060581 is 18506000665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50348628225 + 6251432356 = 224385^2 + 79066^2 .

It is a cyclic number.

It is not a de Polignac number, because 56600060581 - 2⁷ = 56600060453 is a prime.

It is a super-2 number, since 2×56600060581² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56600060581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56600060501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28300030290 + 28300030291.

It is an arithmetic number, because the mean of its divisors is an integer number (28300030291).

Almost surely, 2^56600060581 is an apocalyptic number.

It is an amenable number.

56600060581 is a deficient number, since it is larger than the sum of its proper divisors (1).

56600060581 is an equidigital number, since it uses as much as digits as its factorization.

56600060581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 56600060581 in words is "fifty-six billion, six hundred million, sixty thousand, five hundred eighty-one".