2502494978 has 32 divisors (see below), whose sum is σ = 4075626240. Its totient is φ = 1148601600.

The previous prime is 2502494977. The next prime is 2502495007. The reversal of 2502494978 is 8794942052.

It is a super-2 number, since 2×2502494978² = 12524962229830440968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2502494977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173450 + ... + 187322.

It is an arithmetic number, because the mean of its divisors is an integer number (127363320).

Almost surely, 2^2502494978 is an apocalyptic number.

2502494978 is a deficient number, since it is larger than the sum of its proper divisors (1573131262).

2502494978 is a wasteful number, since it uses less digits than its factorization.

2502494978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14042.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 2502494978 is about 50024.9435581890. The cubic root of 2502494978 is about 1357.6601523340.

The spelling of 2502494978 in words is "two billion, five hundred two million, four hundred ninety-four thousand, nine hundred seventy-eight".