56476601557 has 2 divisors, whose sum is σ = 56476601558. Its totient is φ = 56476601556.

The previous prime is 56476601543. The next prime is 56476601593. The reversal of 56476601557 is 75510667465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46848870916 + 9627730641 = 216446^2 + 98121^2 .

It is a cyclic number.

It is not a de Polignac number, because 56476601557 - 2¹⁵ = 56476568789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56476601057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28238300778 + 28238300779.

It is an arithmetic number, because the mean of its divisors is an integer number (28238300779).

Almost surely, 2^56476601557 is an apocalyptic number.

It is an amenable number.

56476601557 is a deficient number, since it is larger than the sum of its proper divisors (1).

56476601557 is an equidigital number, since it uses as much as digits as its factorization.

56476601557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292000, while the sum is 52.

The spelling of 56476601557 in words is "fifty-six billion, four hundred seventy-six million, six hundred one thousand, five hundred fifty-seven".