56284818821 has 16 divisors (see below), whose sum is σ = 70178711040. Its totient is φ = 43854906480.

The previous prime is 56284818797. The next prime is 56284818833. The reversal of 56284818821 is 12881848265.

56284818821 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 56284818821 - 2⁶ = 56284818757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56284818521) 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, 1520090 + ... + 1556676.

It is an arithmetic number, because the mean of its divisors is an integer number (4386169440).

Almost surely, 2^56284818821 is an apocalyptic number.

It is an amenable number.

56284818821 is a deficient number, since it is larger than the sum of its proper divisors (13893892219).

56284818821 is a wasteful number, since it uses less digits than its factorization.

56284818821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56584.

The product of its digits is 1966080, while the sum is 53.

The spelling of 56284818821 in words is "fifty-six billion, two hundred eighty-four million, eight hundred eighteen thousand, eight hundred twenty-one".