56577283129 has 2 divisors, whose sum is σ = 56577283130. Its totient is φ = 56577283128.

The previous prime is 56577283123. The next prime is 56577283159. The reversal of 56577283129 is 92138277565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34886768400 + 21690514729 = 186780^2 + 147277^2 .

It is a cyclic number.

It is not a de Polignac number, because 56577283129 - 2¹⁷ = 56577152057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56577283129.

It is not a weakly prime, because it can be changed into another prime (56577283123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28288641564 + 28288641565.

It is an arithmetic number, because the mean of its divisors is an integer number (28288641565).

Almost surely, 2^56577283129 is an apocalyptic number.

It is an amenable number.

56577283129 is a deficient number, since it is larger than the sum of its proper divisors (1).

56577283129 is an equidigital number, since it uses as much as digits as its factorization.

56577283129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6350400, while the sum is 55.

The spelling of 56577283129 in words is "fifty-six billion, five hundred seventy-seven million, two hundred eighty-three thousand, one hundred twenty-nine".