25002560 has 56 divisors (see below), whose sum is σ = 64958976. Its totient is φ = 9090560.

The previous prime is 25002557. The next prime is 25002599. The reversal of 25002560 is 6520052.

It is a happy number.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32 + ... + 7071.

Almost surely, 2^25002560 is an apocalyptic number.

25002560 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 25002560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32479488).

25002560 is an abundant number, since it is smaller than the sum of its proper divisors (39956416).

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

25002560 is a wasteful number, since it uses less digits than its factorization.

25002560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7131 (or 7121 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 25002560 is about 5000.2559934467. The cubic root of 25002560 is about 292.4117541278.

The spelling of 25002560 in words is "twenty-five million, two thousand, five hundred sixty".