55219570 has 64 divisors (see below), whose sum is σ = 122860800. Its totient is φ = 17799936.

The previous prime is 55219561. The next prime is 55219601. The reversal of 55219570 is 7591255.

55219570 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 (34).

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 31 ways as a sum of consecutive naturals, for example, 57837 + ... + 58783.

It is an arithmetic number, because the mean of its divisors is an integer number (1919700).

Almost surely, 2^55219570 is an apocalyptic number.

55219570 is an abundant number, since it is smaller than the sum of its proper divisors (67641230).

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

55219570 is a wasteful number, since it uses less digits than its factorization.

55219570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992 (or 978 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 34.

The square root of 55219570 is about 7430.9871484211. The cubic root of 55219570 is about 380.8006433813.

The spelling of 55219570 in words is "fifty-five million, two hundred nineteen thousand, five hundred seventy".