25872688507 has 2 divisors, whose sum is σ = 25872688508. Its totient is φ = 25872688506.

The previous prime is 25872688453. The next prime is 25872688511. The reversal of 25872688507 is 70588627852.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25872688507 is a prime.

It is not a weakly prime, because it can be changed into another prime (25872688007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12936344253 + 12936344254.

It is an arithmetic number, because the mean of its divisors is an integer number (12936344254).

Almost surely, 2^25872688507 is an apocalyptic number.

25872688507 is a deficient number, since it is larger than the sum of its proper divisors (1).

25872688507 is an equidigital number, since it uses as much as digits as its factorization.

25872688507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15052800, while the sum is 58.

The spelling of 25872688507 in words is "twenty-five billion, eight hundred seventy-two million, six hundred eighty-eight thousand, five hundred seven".