25013880 has 256 divisors, whose sum is σ = 93312000. Its totient is φ = 5930496.

The previous prime is 25013803. The next prime is 25013893. The reversal of 25013880 is 8831052.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 471934 + ... + 471986.

It is an arithmetic number, because the mean of its divisors is an integer number (364500).

Almost surely, 2^25013880 is an apocalyptic number.

25013880 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 25013880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46656000).

25013880 is an abundant number, since it is smaller than the sum of its proper divisors (68298120).

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

25013880 is a wasteful number, since it uses less digits than its factorization.

25013880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 25013880 is about 5001.3878073991. The cubic root of 25013880 is about 292.4558776313.

The spelling of 25013880 in words is "twenty-five million, thirteen thousand, eight hundred eighty".