25263959136 has 96 divisors (see below), whose sum is σ = 72397876320. Its totient is φ = 7667011584.

The previous prime is 25263959099. The next prime is 25263959137. The reversal of 25263959136 is 63195936252.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25263959137) 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 in 15 ways as a sum of consecutive naturals, for example, 47551 + ... + 229758.

It is an arithmetic number, because the mean of its divisors is an integer number (754144545).

Almost surely, 2^25263959136 is an apocalyptic number.

25263959136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

25263959136 is an abundant number, since it is smaller than the sum of its proper divisors (47133917184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25263959136 is a wasteful number, since it uses less digits than its factorization.

25263959136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277408 (or 277400 counting only the distinct ones).

The product of its digits is 2624400, while the sum is 51.

The spelling of 25263959136 in words is "twenty-five billion, two hundred sixty-three million, nine hundred fifty-nine thousand, one hundred thirty-six".