25252525252499 has 2 divisors, whose sum is σ = 25252525252500. Its totient is φ = 25252525252498.

The previous prime is 25252525252441. The next prime is 25252525252561. The reversal of 25252525252499 is 99425252525252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25252525252499 - 2⁸ = 25252525252243 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (25252555252499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12626262626249 + 12626262626250.

It is an arithmetic number, because the mean of its divisors is an integer number (12626262626250).

Almost surely, 2^{25252525252499} is an apocalyptic number.

25252525252499 is a deficient number, since it is larger than the sum of its proper divisors (1).

25252525252499 is an equidigital number, since it uses as much as digits as its factorization.

25252525252499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800000, while the sum is 59.

The spelling of 25252525252499 in words is "twenty-five trillion, two hundred fifty-two billion, five hundred twenty-five million, two hundred fifty-two thousand, four hundred ninety-nine".