25091113344 has 64 divisors (see below), whose sum is σ = 72707215680. Its totient is φ = 7603366400.

The previous prime is 25091113283. The next prime is 25091113507. The reversal of 25091113344 is 44331119052.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2965842 + ... + 2974289.

It is an arithmetic number, because the mean of its divisors is an integer number (1136050245).

Almost surely, 2^25091113344 is an apocalyptic number.

25091113344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25091113344 is an abundant number, since it is smaller than the sum of its proper divisors (47616102336).

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

25091113344 is a wasteful number, since it uses less digits than its factorization.

25091113344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5940159 (or 5940147 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 25091113344 in words is "twenty-five billion, ninety-one million, one hundred thirteen thousand, three hundred forty-four".