25970880 has 112 divisors (see below), whose sum is σ = 88843104. Its totient is φ = 6389760.

The previous prime is 25970873. The next prime is 25970897. The reversal of 25970880 is 8807952.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 11440 + ... + 13520.

It is an arithmetic number, because the mean of its divisors is an integer number (793242).

Almost surely, 2^25970880 is an apocalyptic number.

25970880 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 25970880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44421552).

25970880 is an abundant number, since it is smaller than the sum of its proper divisors (62872224).

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

25970880 is a wasteful number, since it uses less digits than its factorization.

25970880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2114 (or 2104 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 25970880 is about 5096.1632626909. The cubic root of 25970880 is about 296.1389656712.

The spelling of 25970880 in words is "twenty-five million, nine hundred seventy thousand, eight hundred eighty".