25751434272 has 24 divisors (see below), whose sum is σ = 67597515216. Its totient is φ = 8583811392.

The previous prime is 25751434249. The next prime is 25751434309. The reversal of 25751434272 is 27243415752.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134121958 + ... + 134122149.

It is an arithmetic number, because the mean of its divisors is an integer number (2816563134).

Almost surely, 2^25751434272 is an apocalyptic number.

It is an amenable number.

25751434272 is an abundant number, since it is smaller than the sum of its proper divisors (41846080944).

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

25751434272 is a wasteful number, since it uses less digits than its factorization.

25751434272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268244120 (or 268244112 counting only the distinct ones).

The product of its digits is 470400, while the sum is 42.

The spelling of 25751434272 in words is "twenty-five billion, seven hundred fifty-one million, four hundred thirty-four thousand, two hundred seventy-two".