2555057808 has 60 divisors (see below), whose sum is σ = 7169152380. Its totient is φ = 849477888.

The previous prime is 2555057801. The next prime is 2555057819. The reversal of 2555057808 is 8087505552.

2555057808 is a `hidden beast` number, since 25 + 5 + 50 + 578 + 0 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 278622864 + 2276434944 = 16692^2 + 47712^2 .

It is not an unprimeable number, because it can be changed into a prime (2555057801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33210 + ... + 78822.

It is an arithmetic number, because the mean of its divisors is an integer number (119485873).

Almost surely, 2^2555057808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2555057808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3584576190).

2555057808 is an abundant number, since it is smaller than the sum of its proper divisors (4614094572).

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

2555057808 is a wasteful number, since it uses less digits than its factorization.

2555057808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46016 (or 46007 counting only the distinct ones).

The product of its (nonzero) digits is 560000, while the sum is 45.

The square root of 2555057808 is about 50547.5796453203. The cubic root of 2555057808 is about 1367.0998746700.

The spelling of 2555057808 in words is "two billion, five hundred fifty-five million, fifty-seven thousand, eight hundred eight".