2505004787 has 2 divisors, whose sum is σ = 2505004788. Its totient is φ = 2505004786.

The previous prime is 2505004753. The next prime is 2505004807. The reversal of 2505004787 is 7874005052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2505004787 - 2⁸ = 2505004531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2505004787.

It is not a weakly prime, because it can be changed into another prime (2505004487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252502393 + 1252502394.

It is an arithmetic number, because the mean of its divisors is an integer number (1252502394).

Almost surely, 2^2505004787 is an apocalyptic number.

2505004787 is a deficient number, since it is larger than the sum of its proper divisors (1).

2505004787 is an equidigital number, since it uses as much as digits as its factorization.

2505004787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 2505004787 is about 50050.0228471476. The cubic root of 2505004787 is about 1358.1138767426.

The spelling of 2505004787 in words is "two billion, five hundred five million, four thousand, seven hundred eighty-seven".