25338880 has 132 divisors (see below), whose sum is σ = 71407548. Its totient is φ = 8601600.

The previous prime is 25338871. The next prime is 25338881. The reversal of 25338880 is 8883352.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18113536 + 7225344 = 4256^2 + 2688^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25338881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 250830 + ... + 250930.

Almost surely, 2^25338880 is an apocalyptic number.

25338880 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 25338880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35703774).

25338880 is an abundant number, since it is smaller than the sum of its proper divisors (46068668).

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

25338880 is a wasteful number, since it uses less digits than its factorization.

25338880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 25338880 is about 5033.7739321507. The cubic root of 25338880 is about 293.7170368927.

The spelling of 25338880 in words is "twenty-five million, three hundred thirty-eight thousand, eight hundred eighty".