55230045 has 24 divisors (see below), whose sum is σ = 95692896. Its totient is φ = 27188928.

The previous prime is 55230041. The next prime is 55230047. The reversal of 55230045 is 54003255.

It is not a de Polignac number, because 55230045 - 2² = 55230041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55229997 and 55230024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55230041) 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, 8359 + ... + 13428.

It is an arithmetic number, because the mean of its divisors is an integer number (3987204).

Almost surely, 2^55230045 is an apocalyptic number.

It is an amenable number.

55230045 is a deficient number, since it is larger than the sum of its proper divisors (40462851).

55230045 is a wasteful number, since it uses less digits than its factorization.

55230045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21821 (or 21808 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 55230045 is about 7431.6919338735. The cubic root of 55230045 is about 380.8247208025.

The spelling of 55230045 in words is "fifty-five million, two hundred thirty thousand, forty-five".