55722075980 has 24 divisors (see below), whose sum is σ = 117020822688. Its totient is φ = 22287980288.

The previous prime is 55722075977. The next prime is 55722076027. The reversal of 55722075980 is 8957022755.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 911537 + ... + 970743.

It is an arithmetic number, because the mean of its divisors is an integer number (4875867612).

Almost surely, 2^55722075980 is an apocalyptic number.

It is an amenable number.

55722075980 is an abundant number, since it is smaller than the sum of its proper divisors (61298746708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55722075980 is a wasteful number, since it uses less digits than its factorization.

55722075980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106273 (or 106271 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 50.

The spelling of 55722075980 in words is "fifty-five billion, seven hundred twenty-two million, seventy-five thousand, nine hundred eighty".