55134216 has 32 divisors (see below), whose sum is σ = 153151200. Its totient is φ = 18378000.

The previous prime is 55134139. The next prime is 55134221. The reversal of 55134216 is 61243155.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 55134216.

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, 127410 + ... + 127841.

It is an arithmetic number, because the mean of its divisors is an integer number (4785975).

Almost surely, 2^55134216 is an apocalyptic number.

It is an amenable number.

55134216 is an abundant number, since it is smaller than the sum of its proper divisors (98016984).

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

55134216 is a wasteful number, since it uses less digits than its factorization.

55134216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255266 (or 255256 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 55134216 is about 7425.2418142442. The cubic root of 55134216 is about 380.6043384645.

The spelling of 55134216 in words is "fifty-five million, one hundred thirty-four thousand, two hundred sixteen".