56577220741 has 2 divisors, whose sum is σ = 56577220742. Its totient is φ = 56577220740.

The previous prime is 56577220649. The next prime is 56577220769. The reversal of 56577220741 is 14702277565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42912779716 + 13664441025 = 207154^2 + 116895^2 .

It is a cyclic number.

It is not a de Polignac number, because 56577220741 - 2¹¹ = 56577218693 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56577220691 and 56577220700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56577220771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28288610370 + 28288610371.

It is an arithmetic number, because the mean of its divisors is an integer number (28288610371).

Almost surely, 2^56577220741 is an apocalyptic number.

It is an amenable number.

56577220741 is a deficient number, since it is larger than the sum of its proper divisors (1).

56577220741 is an equidigital number, since it uses as much as digits as its factorization.

56577220741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 823200, while the sum is 46.

The spelling of 56577220741 in words is "fifty-six billion, five hundred seventy-seven million, two hundred twenty thousand, seven hundred forty-one".