2555566798 has 16 divisors (see below), whose sum is σ = 3933656496. Its totient is φ = 1244517120.

The previous prime is 2555566781. The next prime is 2555566799. The reversal of 2555566798 is 8976655552.

2555566798 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555566799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11733 + ... + 72448.

It is an arithmetic number, because the mean of its divisors is an integer number (245853531).

Almost surely, 2^2555566798 is an apocalyptic number.

2555566798 is a deficient number, since it is larger than the sum of its proper divisors (1378089698).

2555566798 is a wasteful number, since it uses less digits than its factorization.

2555566798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84579.

The product of its digits is 22680000, while the sum is 58.

The square root of 2555566798 is about 50552.6141559465. The cubic root of 2555566798 is about 1367.1906480845.

The spelling of 2555566798 in words is "two billion, five hundred fifty-five million, five hundred sixty-six thousand, seven hundred ninety-eight".