55624227 has 4 divisors (see below), whose sum is σ = 74165640. Its totient is φ = 37082816.

The previous prime is 55624211. The next prime is 55624243. The reversal of 55624227 is 72242655.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (55624211) and next prime (55624243).

It is a cyclic number.

It is not a de Polignac number, because 55624227 - 2⁴ = 55624211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55624207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9270702 + ... + 9270707.

It is an arithmetic number, because the mean of its divisors is an integer number (18541410).

Almost surely, 2^55624227 is an apocalyptic number.

55624227 is a deficient number, since it is larger than the sum of its proper divisors (18541413).

55624227 is a wasteful number, since it uses less digits than its factorization.

55624227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18541412.

The product of its digits is 33600, while the sum is 33.

The square root of 55624227 is about 7458.1651228704. The cubic root of 55624227 is about 381.7285678114.

The spelling of 55624227 in words is "fifty-five million, six hundred twenty-four thousand, two hundred twenty-seven".