55237162722 has 32 divisors (see below), whose sum is σ = 133683219072. Its totient is φ = 14853690624.

The previous prime is 55237162639. The next prime is 55237162727. The reversal of 55237162722 is 22726173255.

55237162722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55237162722² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (55237162727) 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, 38680773 + ... + 38682200.

It is an arithmetic number, because the mean of its divisors is an integer number (4177600596).

Almost surely, 2^55237162722 is an apocalyptic number.

55237162722 is an abundant number, since it is smaller than the sum of its proper divisors (78446056350).

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

55237162722 is a wasteful number, since it uses less digits than its factorization.

55237162722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77363002.

The product of its digits is 352800, while the sum is 42.

The spelling of 55237162722 in words is "fifty-five billion, two hundred thirty-seven million, one hundred sixty-two thousand, seven hundred twenty-two".