25648960 has 28 divisors (see below), whose sum is σ = 61077348. Its totient is φ = 10259456.

The previous prime is 25648951. The next prime is 25648969. The reversal of 25648960 is 6984652.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25648951) and next prime (25648969).

It can be written as a sum of positive squares in 2 ways, for example, as 19927296 + 5721664 = 4464^2 + 2392^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25648969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39757 + ... + 40396.

Almost surely, 2^25648960 is an apocalyptic number.

25648960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25648960 is an abundant number, since it is smaller than the sum of its proper divisors (35428388).

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

25648960 is an equidigital number, since it uses as much as digits as its factorization.

25648960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80170 (or 80160 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 25648960 is about 5064.4802299940. The cubic root of 25648960 is about 294.9102858477.

The spelling of 25648960 in words is "twenty-five million, six hundred forty-eight thousand, nine hundred sixty".