25513360 has 20 divisors (see below), whose sum is σ = 59318748. Its totient is φ = 10205312.

The previous prime is 25513349. The next prime is 25513361. The reversal of 25513360 is 6331552.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6012304 + 19501056 = 2452^2 + 4416^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (25513361) 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, 159379 + ... + 159538.

Almost surely, 2^25513360 is an apocalyptic number.

25513360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25513360 is an abundant number, since it is smaller than the sum of its proper divisors (33805388).

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

25513360 is a wasteful number, since it uses less digits than its factorization.

25513360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318930 (or 318924 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 25513360 is about 5051.0751330781. The cubic root of 25513360 is about 294.3896602583.

The spelling of 25513360 in words is "twenty-five million, five hundred thirteen thousand, three hundred sixty".