56455232657 has 16 divisors (see below), whose sum is σ = 58018609152. Its totient is φ = 54911001600.

The previous prime is 56455232621. The next prime is 56455232693. The reversal of 56455232657 is 75623255465.

It is an interprime number because it is at equal distance from previous prime (56455232621) and next prime (56455232693).

It is a cyclic number.

It is not a de Polignac number, because 56455232657 - 2¹⁶ = 56455167121 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56455232857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11756657 + ... + 11761457.

It is an arithmetic number, because the mean of its divisors is an integer number (3626163072).

Almost surely, 2^56455232657 is an apocalyptic number.

It is an amenable number.

56455232657 is a deficient number, since it is larger than the sum of its proper divisors (1563376495).

56455232657 is a wasteful number, since it uses less digits than its factorization.

56455232657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6728.

The product of its digits is 7560000, while the sum is 50.

The spelling of 56455232657 in words is "fifty-six billion, four hundred fifty-five million, two hundred thirty-two thousand, six hundred fifty-seven".