56553832551 has 16 divisors (see below), whose sum is σ = 78158882304. Its totient is φ = 36349615104.

The previous prime is 56553832547. The next prime is 56553832571. The reversal of 56553832551 is 15523835565.

56553832551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56553832551 - 2² = 56553832547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56553832551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56553832571) 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, 2983770 + ... + 3002663.

It is an arithmetic number, because the mean of its divisors is an integer number (4884930144).

Almost surely, 2^56553832551 is an apocalyptic number.

56553832551 is a deficient number, since it is larger than the sum of its proper divisors (21605049753).

56553832551 is a wasteful number, since it uses less digits than its factorization.

56553832551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5986550.

The product of its digits is 2700000, while the sum is 48.

The spelling of 56553832551 in words is "fifty-six billion, five hundred fifty-three million, eight hundred thirty-two thousand, five hundred fifty-one".