56545220453 has 32 divisors (see below), whose sum is σ = 59184276480. Its totient is φ = 53992673280.

The previous prime is 56545220401. The next prime is 56545220467. The reversal of 56545220453 is 35402254565.

It is a cyclic number.

It is not a de Polignac number, because 56545220453 - 2³² = 52250253157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56545220453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56545225453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108531833 + ... + 108532353.

It is an arithmetic number, because the mean of its divisors is an integer number (1849508640).

Almost surely, 2^56545220453 is an apocalyptic number.

It is an amenable number.

56545220453 is a deficient number, since it is larger than the sum of its proper divisors (2639056027).

56545220453 is a wasteful number, since it uses less digits than its factorization.

56545220453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989.

The product of its (nonzero) digits is 720000, while the sum is 41.

The spelling of 56545220453 in words is "fifty-six billion, five hundred forty-five million, two hundred twenty thousand, four hundred fifty-three".