25220880 has 120 divisors (see below), whose sum is σ = 88440768. Its totient is φ = 6428928.

The previous prime is 25220869. The next prime is 25220929. The reversal of 25220880 is 8802252.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15799 + ... + 17321.

Almost surely, 2^25220880 is an apocalyptic number.

25220880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25220880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44220384).

25220880 is an abundant number, since it is smaller than the sum of its proper divisors (63219888).

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

25220880 is a wasteful number, since it uses less digits than its factorization.

25220880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565 (or 1556 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 25220880 is about 5022.0394263685. The cubic root of 25220880 is about 293.2603927915.

The spelling of 25220880 in words is "twenty-five million, two hundred twenty thousand, eight hundred eighty".