25228560 has 80 divisors (see below), whose sum is σ = 89387136. Its totient is φ = 5766144.

The previous prime is 25228559. The next prime is 25228589. The reversal of 25228560 is 6582252.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5829 + ... + 9188.

Almost surely, 2^25228560 is an apocalyptic number.

25228560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25228560 is an abundant number, since it is smaller than the sum of its proper divisors (64158576).

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

25228560 is a wasteful number, since it uses less digits than its factorization.

25228560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15040 (or 15034 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 25228560 is about 5022.8039977686. The cubic root of 25228560 is about 293.2901566386.

The spelling of 25228560 in words is "twenty-five million, two hundred twenty-eight thousand, five hundred sixty".