25620232499 has 2 divisors, whose sum is σ = 25620232500. Its totient is φ = 25620232498.

The previous prime is 25620232457. The next prime is 25620232501. The reversal of 25620232499 is 99423202652.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25620232499 is a prime.

Together with 25620232501, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25620232399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12810116249 + 12810116250.

It is an arithmetic number, because the mean of its divisors is an integer number (12810116250).

Almost surely, 2^25620232499 is an apocalyptic number.

25620232499 is a deficient number, since it is larger than the sum of its proper divisors (1).

25620232499 is an equidigital number, since it uses as much as digits as its factorization.

25620232499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 25620232499 in words is "twenty-five billion, six hundred twenty million, two hundred thirty-two thousand, four hundred ninety-nine".