25501113499 has 2 divisors, whose sum is σ = 25501113500. Its totient is φ = 25501113498.

The previous prime is 25501113437. The next prime is 25501113527. The reversal of 25501113499 is 99431110552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25501113499 - 2¹⁹ = 25500589211 is a prime.

It is not a weakly prime, because it can be changed into another prime (25501113409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12750556749 + 12750556750.

It is an arithmetic number, because the mean of its divisors is an integer number (12750556750).

Almost surely, 2^25501113499 is an apocalyptic number.

25501113499 is a deficient number, since it is larger than the sum of its proper divisors (1).

25501113499 is an equidigital number, since it uses as much as digits as its factorization.

25501113499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48600, while the sum is 40.

The spelling of 25501113499 in words is "twenty-five billion, five hundred one million, one hundred thirteen thousand, four hundred ninety-nine".