2566423554 has 16 divisors (see below), whose sum is σ = 5135796192. Its totient is φ = 854983008.

The previous prime is 2566423511. The next prime is 2566423583. The reversal of 2566423554 is 4553246652.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 111484 + ... + 132519.

It is an arithmetic number, because the mean of its divisors is an integer number (320987262).

Almost surely, 2^2566423554 is an apocalyptic number.

2566423554 is an abundant number, since it is smaller than the sum of its proper divisors (2569372638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2566423554 is a wasteful number, since it uses less digits than its factorization.

2566423554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245761.

The product of its digits is 864000, while the sum is 42.

The square root of 2566423554 is about 50659.8811092170. The cubic root of 2566423554 is about 1369.1239811429.

The spelling of 2566423554 in words is "two billion, five hundred sixty-six million, four hundred twenty-three thousand, five hundred fifty-four".