56478525643 has 16 divisors (see below), whose sum is σ = 60096677760. Its totient is φ = 52976246400.

The previous prime is 56478525583. The next prime is 56478525647. The reversal of 56478525643 is 34652587465.

56478525643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 56478525643 - 2²⁵ = 56444971211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56478525647) 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, 669438 + ... + 749068.

It is an arithmetic number, because the mean of its divisors is an integer number (3756042360).

Almost surely, 2^56478525643 is an apocalyptic number.

56478525643 is a deficient number, since it is larger than the sum of its proper divisors (3618152117).

56478525643 is a wasteful number, since it uses less digits than its factorization.

56478525643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80358.

The product of its digits is 24192000, while the sum is 55.

The spelling of 56478525643 in words is "fifty-six billion, four hundred seventy-eight million, five hundred twenty-five thousand, six hundred forty-three".