2556451008 has 42 divisors (see below), whose sum is σ = 7327606884. Its totient is φ = 852150144.

The previous prime is 2556451003. The next prime is 2556451019. The reversal of 2556451008 is 8001546552.

2556451008 is a `hidden beast` number, since 2 + 5 + 5 + 645 + 1 + 0 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2556451003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2218566 + ... + 2219717.

Almost surely, 2^2556451008 is an apocalyptic number.

It is an amenable number.

2556451008 is an abundant number, since it is smaller than the sum of its proper divisors (4771155876).

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

2556451008 is a wasteful number, since it uses less digits than its factorization.

2556451008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4438301 (or 4438288 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 2556451008 is about 50561.3588424995. The cubic root of 2556451008 is about 1367.3483096841.

The spelling of 2556451008 in words is "two billion, five hundred fifty-six million, four hundred fifty-one thousand, eight".