25532560 has 40 divisors (see below), whose sum is σ = 59728320. Its totient is φ = 10150272.

The previous prime is 25532537. The next prime is 25532569. The reversal of 25532560 is 6523552.

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

It is not an unprimeable number, because it can be changed into a prime (25532569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13429 + ... + 15211.

It is an arithmetic number, because the mean of its divisors is an integer number (1493208).

Almost surely, 2^25532560 is an apocalyptic number.

25532560 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 25532560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29864160).

25532560 is an abundant number, since it is smaller than the sum of its proper divisors (34195760).

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

25532560 is a wasteful number, since it uses less digits than its factorization.

25532560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975 (or 1969 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 25532560 is about 5052.9753611115. The cubic root of 25532560 is about 294.4634890837.

The spelling of 25532560 in words is "twenty-five million, five hundred thirty-two thousand, five hundred sixty".