25621460 has 24 divisors (see below), whose sum is σ = 54020736. Its totient is φ = 10207520.

The previous prime is 25621459. The next prime is 25621487. The reversal of 25621460 is 6412652.

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, 2825 + ... + 7695.

It is an arithmetic number, because the mean of its divisors is an integer number (2250864).

Almost surely, 2^25621460 is an apocalyptic number.

25621460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25621460 is an abundant number, since it is smaller than the sum of its proper divisors (28399276).

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

25621460 is a wasteful number, since it uses less digits than its factorization.

25621460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5143 (or 5141 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 25621460 is about 5061.7645144752. The cubic root of 25621460 is about 294.8048503443.

The spelling of 25621460 in words is "twenty-five million, six hundred twenty-one thousand, four hundred sixty".