25002479271 has 48 divisors (see below), whose sum is σ = 43448227200. Its totient is φ = 12637235520.

The previous prime is 25002479239. The next prime is 25002479279. The reversal of 25002479271 is 17297420052.

It is not a de Polignac number, because 25002479271 - 2⁵ = 25002479239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25002479279) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 149121 + ... + 268778.

It is an arithmetic number, because the mean of its divisors is an integer number (905171400).

Almost surely, 2^25002479271 is an apocalyptic number.

25002479271 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

25002479271 is a deficient number, since it is larger than the sum of its proper divisors (18445747929).

25002479271 is a wasteful number, since it uses less digits than its factorization.

25002479271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417964 (or 417957 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 25002479271 in words is "twenty-five billion, two million, four hundred seventy-nine thousand, two hundred seventy-one".