25632560 has 40 divisors (see below), whose sum is σ = 59825040. Its totient is φ = 10213632.

The previous prime is 25632559. The next prime is 25632571. The reversal of 25632560 is 6523652.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a zygodrome in base 2.

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, 29411 + ... + 30269.

It is an arithmetic number, because the mean of its divisors is an integer number (1495626).

Almost surely, 2^25632560 is an apocalyptic number.

25632560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25632560 is an abundant number, since it is smaller than the sum of its proper divisors (34192480).

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

25632560 is a wasteful number, since it uses less digits than its factorization.

25632560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245 (or 1239 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 25632560 is about 5062.8608513369. The cubic root of 25632560 is about 294.8474170233.

The spelling of 25632560 in words is "twenty-five million, six hundred thirty-two thousand, five hundred sixty".