2501399939 has 2 divisors, whose sum is σ = 2501399940. Its totient is φ = 2501399938.

The previous prime is 2501399933. The next prime is 2501400023. The reversal of 2501399939 is 9399931052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2501399939 - 2²⁰ = 2500351363 is a prime.

It is not a weakly prime, because it can be changed into another prime (2501399933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250699969 + 1250699970.

It is an arithmetic number, because the mean of its divisors is an integer number (1250699970).

Almost surely, 2^2501399939 is an apocalyptic number.

2501399939 is a deficient number, since it is larger than the sum of its proper divisors (1).

2501399939 is an equidigital number, since it uses as much as digits as its factorization.

2501399939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 590490, while the sum is 50.

The square root of 2501399939 is about 50013.9974307193. The cubic root of 2501399939 is about 1357.4620956307.

The spelling of 2501399939 in words is "two billion, five hundred one million, three hundred ninety-nine thousand, nine hundred thirty-nine".