2500000090 has 64 divisors (see below), whose sum is σ = 5389920000. Its totient is φ = 833934528.

The previous prime is 2500000057. The next prime is 2500000103. The reversal of 2500000090 is 900000052.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117061 + ... + 136759.

It is an arithmetic number, because the mean of its divisors is an integer number (84217500).

Almost surely, 2^2500000090 is an apocalyptic number.

2500000090 is an abundant number, since it is smaller than the sum of its proper divisors (2889919910).

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

2500000090 is a wasteful number, since it uses less digits than its factorization.

2500000090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19764 (or 19750 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 2500000090 is about 50000.0009000000. Note that the first 3 decimals coincide. The cubic root of 2500000090 is about 1357.2088245840.

Subtracting from 2500000090 its product of nonzero digits (90), we obtain a square (2500000000 = 50000²).

The spelling of 2500000090 in words is "two billion, five hundred million, ninety", and thus it is an aban number.