25025580 has 72 divisors (see below), whose sum is σ = 77785344. Its totient is φ = 6508800.

The previous prime is 25025563. The next prime is 25025591. The reversal of 25025580 is 8552052.

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, 5685 + ... + 9075.

It is an arithmetic number, because the mean of its divisors is an integer number (1080352).

Almost surely, 2^25025580 is an apocalyptic number.

25025580 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 25025580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38892672).

25025580 is an abundant number, since it is smaller than the sum of its proper divisors (52759764).

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

25025580 is a wasteful number, since it uses less digits than its factorization.

25025580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3447 (or 3442 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 25025580 is about 5002.5573459981. The cubic root of 25025580 is about 292.5014683249.

The spelling of 25025580 in words is "twenty-five million, twenty-five thousand, five hundred eighty".