56212604677 has 2 divisors, whose sum is σ = 56212604678. Its totient is φ = 56212604676.

The previous prime is 56212604653. The next prime is 56212604741. The reversal of 56212604677 is 77640621265.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53026115076 + 3186489601 = 230274^2 + 56449^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56212604677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56212614677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28106302338 + 28106302339.

It is an arithmetic number, because the mean of its divisors is an integer number (28106302339).

Almost surely, 2^56212604677 is an apocalyptic number.

It is an amenable number.

56212604677 is a deficient number, since it is larger than the sum of its proper divisors (1).

56212604677 is an equidigital number, since it uses as much as digits as its factorization.

56212604677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 56212604677 in words is "fifty-six billion, two hundred twelve million, six hundred four thousand, six hundred seventy-seven".