2515894994 has 16 divisors (see below), whose sum is σ = 4079832000. Its totient is φ = 1159529904.

The previous prime is 2515894981. The next prime is 2515895009. The reversal of 2515894994 is 4994985152.

2515894994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 893294 + ... + 896105.

It is an arithmetic number, because the mean of its divisors is an integer number (254989500).

Almost surely, 2^2515894994 is an apocalyptic number.

2515894994 is a deficient number, since it is larger than the sum of its proper divisors (1563937006).

2515894994 is a wasteful number, since it uses less digits than its factorization.

2515894994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1789457.

The product of its digits is 4665600, while the sum is 56.

The square root of 2515894994 is about 50158.6980891650. The cubic root of 2515894994 is about 1360.0791105221.

The spelling of 2515894994 in words is "two billion, five hundred fifteen million, eight hundred ninety-four thousand, nine hundred ninety-four".