2500099979 has 12 divisors (see below), whose sum is σ = 2737643400. Its totient is φ = 2281840704.

The previous prime is 2500099939. The next prime is 2500099991. The reversal of 2500099979 is 9799900052.

2500099979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2500099979 - 2²⁴ = 2483322763 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2500099939) 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, 68069 + ... + 98150.

It is an arithmetic number, because the mean of its divisors is an integer number (228136950).

Almost surely, 2^2500099979 is an apocalyptic number.

2500099979 is a deficient number, since it is larger than the sum of its proper divisors (237543421).

2500099979 is a wasteful number, since it uses less digits than its factorization.

2500099979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166334 (or 166321 counting only the distinct ones).

The product of its (nonzero) digits is 459270, while the sum is 50.

The square root of 2500099979 is about 50000.9997800044. Note that the first 3 decimals coincide. The cubic root of 2500099979 is about 1357.2269003735.

The spelling of 2500099979 in words is "two billion, five hundred million, ninety-nine thousand, nine hundred seventy-nine".