55219170 has 32 divisors (see below), whose sum is σ = 136110528. Its totient is φ = 14326848.

The previous prime is 55219141. The next prime is 55219193. The reversal of 55219170 is 7191255.

55219170 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23764 + ... + 25983.

It is an arithmetic number, because the mean of its divisors is an integer number (4253454).

Almost surely, 2^55219170 is an apocalyptic number.

55219170 is an abundant number, since it is smaller than the sum of its proper divisors (80891358).

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

55219170 is a wasteful number, since it uses less digits than its factorization.

55219170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49794.

The product of its (nonzero) digits is 3150, while the sum is 30.

The square root of 55219170 is about 7430.9602340478. The cubic root of 55219170 is about 380.7997238967.

The spelling of 55219170 in words is "fifty-five million, two hundred nineteen thousand, one hundred seventy".