55044225 has 24 divisors (see below), whose sum is σ = 101119520. Its totient is φ = 29356560.

The previous prime is 55044217. The next prime is 55044229. The reversal of 55044225 is 52244055.

It is not a de Polignac number, because 55044225 - 2³ = 55044217 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (55044229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40099 + ... + 41448.

Almost surely, 2^55044225 is an apocalyptic number.

It is an amenable number.

55044225 is a deficient number, since it is larger than the sum of its proper divisors (46075295).

55044225 is a wasteful number, since it uses less digits than its factorization.

55044225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81566 (or 81555 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 55044225 is about 7419.1795368491. The cubic root of 55044225 is about 380.3971494179.

The spelling of 55044225 in words is "fifty-five million, forty-four thousand, two hundred twenty-five".