55479227 has 2 divisors, whose sum is σ = 55479228. Its totient is φ = 55479226.

The previous prime is 55479173. The next prime is 55479239. The reversal of 55479227 is 72297455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55479227 - 2¹⁸ = 55217083 is a prime.

It is not a weakly prime, because it can be changed into another prime (55472227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27739613 + 27739614.

It is an arithmetic number, because the mean of its divisors is an integer number (27739614).

Almost surely, 2^55479227 is an apocalyptic number.

55479227 is a deficient number, since it is larger than the sum of its proper divisors (1).

55479227 is an equidigital number, since it uses as much as digits as its factorization.

55479227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 176400, while the sum is 41.

The square root of 55479227 is about 7448.4378899203. The cubic root of 55479227 is about 381.3965853241.

The spelling of 55479227 in words is "fifty-five million, four hundred seventy-nine thousand, two hundred twenty-seven".