2504399987 has 2 divisors, whose sum is σ = 2504399988. Its totient is φ = 2504399986.

The previous prime is 2504399983. The next prime is 2504400049. The reversal of 2504399987 is 7899934052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2504399987 - 2² = 2504399983 is a prime.

It is not a weakly prime, because it can be changed into another prime (2504399981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252199993 + 1252199994.

It is an arithmetic number, because the mean of its divisors is an integer number (1252199994).

Almost surely, 2^2504399987 is an apocalyptic number.

2504399987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2504399987 is an equidigital number, since it uses as much as digits as its factorization.

2504399987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 56.

The square root of 2504399987 is about 50043.9805271323. The cubic root of 2504399987 is about 1358.0045684503.

The spelling of 2504399987 in words is "two billion, five hundred four million, three hundred ninety-nine thousand, nine hundred eighty-seven".