2556603108 has 48 divisors (see below), whose sum is σ = 6842053120. Its totient is φ = 824709600.

The previous prime is 2556603079. The next prime is 2556603131. The reversal of 2556603108 is 8013066552.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378463 + ... + 385158.

Almost surely, 2^2556603108 is an apocalyptic number.

It is an amenable number.

2556603108 is an abundant number, since it is smaller than the sum of its proper divisors (4285450012).

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

2556603108 is a wasteful number, since it uses less digits than its factorization.

2556603108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763665 (or 763657 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 2556603108 is about 50562.8629331845. The cubic root of 2556603108 is about 1367.3754266460.

The spelling of 2556603108 in words is "two billion, five hundred fifty-six million, six hundred three thousand, one hundred eight".