225624642055 has 4 divisors (see below), whose sum is σ = 270749570472. Its totient is φ = 180499713640.

The previous prime is 225624642031. The next prime is 225624642071. The reversal of 225624642055 is 550246426522.

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

It is not a de Polignac number, because 225624642055 - 2¹⁷ = 225624510983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22562464201 + ... + 22562464210.

It is an arithmetic number, because the mean of its divisors is an integer number (67687392618).

Almost surely, 2^225624642055 is an apocalyptic number.

225624642055 is a deficient number, since it is larger than the sum of its proper divisors (45124928417).

225624642055 is an equidigital number, since it uses as much as digits as its factorization.

225624642055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45124928416.

The product of its (nonzero) digits is 1152000, while the sum is 43.

The spelling of 225624642055 in words is "two hundred twenty-five billion, six hundred twenty-four million, six hundred forty-two thousand, fifty-five".