25428960 has 72 divisors (see below), whose sum is σ = 86781240. Its totient is φ = 6780672.

The previous prime is 25428947. The next prime is 25428971. The reversal of 25428960 is 6982452.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7390 + ... + 10269.

It is an arithmetic number, because the mean of its divisors is an integer number (1205295).

Almost surely, 2^25428960 is an apocalyptic number.

25428960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25428960 is an abundant number, since it is smaller than the sum of its proper divisors (61352280).

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

25428960 is a wasteful number, since it uses less digits than its factorization.

25428960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17680 (or 17669 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 25428960 is about 5042.7135552200. The cubic root of 25428960 is about 294.0646810348.

The spelling of 25428960 in words is "twenty-five million, four hundred twenty-eight thousand, nine hundred sixty".