25299538967 has 2 divisors, whose sum is σ = 25299538968. Its totient is φ = 25299538966.

The previous prime is 25299538963. The next prime is 25299539003. The reversal of 25299538967 is 76983599252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25299538967 - 2² = 25299538963 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25299538963) 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, 12649769483 + 12649769484.

It is an arithmetic number, because the mean of its divisors is an integer number (12649769484).

Almost surely, 2^25299538967 is an apocalyptic number.

25299538967 is a deficient number, since it is larger than the sum of its proper divisors (1).

25299538967 is an equidigital number, since it uses as much as digits as its factorization.

25299538967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73483200, while the sum is 65.

The spelling of 25299538967 in words is "twenty-five billion, two hundred ninety-nine million, five hundred thirty-eight thousand, nine hundred sixty-seven".