56097442221 has 32 divisors (see below), whose sum is σ = 82183680000. Its totient is φ = 33878294208.

The previous prime is 56097442187. The next prime is 56097442229. The reversal of 56097442221 is 12224479065.

It is a happy number.

It is not a de Polignac number, because 56097442221 - 2⁹ = 56097441709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56097442229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5696620 + ... + 5706458.

It is an arithmetic number, because the mean of its divisors is an integer number (2568240000).

Almost surely, 2^56097442221 is an apocalyptic number.

It is an amenable number.

56097442221 is a deficient number, since it is larger than the sum of its proper divisors (26086237779).

56097442221 is a wasteful number, since it uses less digits than its factorization.

56097442221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14233.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 56097442221 in words is "fifty-six billion, ninety-seven million, four hundred forty-two thousand, two hundred twenty-one".