56534572657 has 4 divisors (see below), whose sum is σ = 56830565376. Its totient is φ = 56238579940.

The previous prime is 56534572553. The next prime is 56534572663. The reversal of 56534572657 is 75627543565.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56534572657 - 2⁷ = 56534572529 is a prime.

It is a super-2 number, since 2×56534572657² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56534572598 and 56534572607.

It is not an unprimeable number, because it can be changed into a prime (56534572357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147996073 + ... + 147996454.

It is an arithmetic number, because the mean of its divisors is an integer number (14207641344).

Almost surely, 2^56534572657 is an apocalyptic number.

It is an amenable number.

56534572657 is a deficient number, since it is larger than the sum of its proper divisors (295992719).

56534572657 is a wasteful number, since it uses less digits than its factorization.

56534572657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295992718.

The product of its digits is 26460000, while the sum is 55.

The spelling of 56534572657 in words is "fifty-six billion, five hundred thirty-four million, five hundred seventy-two thousand, six hundred fifty-seven".