55945224 has 48 divisors (see below), whose sum is σ = 152071920. Its totient is φ = 18580320.

The previous prime is 55945217. The next prime is 55945247. The reversal of 55945224 is 42254955.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20839 + ... + 23369.

It is an arithmetic number, because the mean of its divisors is an integer number (3168165).

Almost surely, 2^55945224 is an apocalyptic number.

It is an amenable number.

55945224 is an abundant number, since it is smaller than the sum of its proper divisors (96126696).

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

55945224 is a wasteful number, since it uses less digits than its factorization.

55945224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2850 (or 2843 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 55945224 is about 7479.6540026929. The cubic root of 55945224 is about 382.4614545292.

It can be divided in two parts, 55945 and 224, that added together give a square (56169 = 237²).

The spelling of 55945224 in words is "fifty-five million, nine hundred forty-five thousand, two hundred twenty-four".