55622118 has 32 divisors (see below), whose sum is σ = 114492672. Its totient is φ = 18007200.

The previous prime is 55622111. The next prime is 55622123. The reversal of 55622118 is 81122655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55622111) 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, 29463 + ... + 31293.

It is an arithmetic number, because the mean of its divisors is an integer number (3577896).

Almost surely, 2^55622118 is an apocalyptic number.

55622118 is an abundant number, since it is smaller than the sum of its proper divisors (58870554).

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

55622118 is a wasteful number, since it uses less digits than its factorization.

55622118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980.

The product of its digits is 4800, while the sum is 30.

The square root of 55622118 is about 7458.0237328665. The cubic root of 55622118 is about 381.7237433206.

The spelling of 55622118 in words is "fifty-five million, six hundred twenty-two thousand, one hundred eighteen".