25621360 has 20 divisors (see below), whose sum is σ = 59569848. Its totient is φ = 10248512.

The previous prime is 25621339. The next prime is 25621369. The reversal of 25621360 is 6312652.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25621369) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 160054 + ... + 160213.

Almost surely, 2^25621360 is an apocalyptic number.

25621360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25621360 is an abundant number, since it is smaller than the sum of its proper divisors (33948488).

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

25621360 is a wasteful number, since it uses less digits than its factorization.

25621360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320280 (or 320274 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 25621360 is about 5061.7546364872. The cubic root of 25621360 is about 294.8044668048.

The spelling of 25621360 in words is "twenty-five million, six hundred twenty-one thousand, three hundred sixty".