55470216 has 32 divisors (see below), whose sum is σ = 139039200. Its totient is φ = 18441600.

The previous prime is 55470211. The next prime is 55470223. The reversal of 55470216 is 61207455.

It is not an unprimeable number, because it can be changed into a prime (55470211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6991 + ... + 12641.

It is an arithmetic number, because the mean of its divisors is an integer number (4344975).

Almost surely, 2^55470216 is an apocalyptic number.

It is an amenable number.

55470216 is an abundant number, since it is smaller than the sum of its proper divisors (83568984).

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

55470216 is a wasteful number, since it uses less digits than its factorization.

55470216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6069 (or 6065 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 55470216 is about 7447.8329734225. The cubic root of 55470216 is about 381.3759352483.

The spelling of 55470216 in words is "fifty-five million, four hundred seventy thousand, two hundred sixteen".