2550220555 has 4 divisors (see below), whose sum is σ = 3060264672. Its totient is φ = 2040176440.

The previous prime is 2550220553. The next prime is 2550220573. The reversal of 2550220555 is 5550220552.

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

It is not a de Polignac number, because 2550220555 - 2¹ = 2550220553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2550220553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255022051 + ... + 255022060.

It is an arithmetic number, because the mean of its divisors is an integer number (765066168).

Almost surely, 2^2550220555 is an apocalyptic number.

2550220555 is a deficient number, since it is larger than the sum of its proper divisors (510044117).

2550220555 is an equidigital number, since it uses as much as digits as its factorization.

2550220555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510044116.

The product of its (nonzero) digits is 25000, while the sum is 31.

The square root of 2550220555 is about 50499.7084645050. The cubic root of 2550220555 is about 1366.2365953594.

The spelling of 2550220555 in words is "two billion, five hundred fifty million, two hundred twenty thousand, five hundred fifty-five".