25891260 has 24 divisors (see below), whose sum is σ = 72495696. Its totient is φ = 6904320.

The previous prime is 25891259. The next prime is 25891273. The reversal of 25891260 is 6219852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215701 + ... + 215820.

It is an arithmetic number, because the mean of its divisors is an integer number (3020654).

Almost surely, 2^25891260 is an apocalyptic number.

25891260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25891260 is an abundant number, since it is smaller than the sum of its proper divisors (46604436).

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

25891260 is a wasteful number, since it uses less digits than its factorization.

25891260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431533 (or 431531 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 25891260 is about 5088.3455071369. The cubic root of 25891260 is about 295.8360273951.

The spelling of 25891260 in words is "twenty-five million, eight hundred ninety-one thousand, two hundred sixty".