55057116 has 72 divisors (see below), whose sum is σ = 137514496. Its totient is φ = 17123040.

The previous prime is 55057063. The next prime is 55057127. The reversal of 55057116 is 61175055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 821715 + ... + 821781.

Almost surely, 2^55057116 is an apocalyptic number.

It is an amenable number.

55057116 is an abundant number, since it is smaller than the sum of its proper divisors (82457380).

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

55057116 is a wasteful number, since it uses less digits than its factorization.

55057116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 30.

The square root of 55057116 is about 7420.0482478216. The cubic root of 55057116 is about 380.4268426140.

It can be divided in two parts, 5505 and 7116, that added together give a palindrome (12621).

The spelling of 55057116 in words is "fifty-five million, fifty-seven thousand, one hundred sixteen".