25500288 has 64 divisors (see below), whose sum is σ = 73905120. Its totient is φ = 7726080.

The previous prime is 25500283. The next prime is 25500361. The reversal of 25500288 is 88200552.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (25500283) 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, 1206 + ... + 7242.

Almost surely, 2^25500288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25500288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36952560).

25500288 is an abundant number, since it is smaller than the sum of its proper divisors (48404832).

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

25500288 is a wasteful number, since it uses less digits than its factorization.

25500288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6065 (or 6053 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 25500288 is about 5049.7809853498. The cubic root of 25500288 is about 294.3393739370.

The spelling of 25500288 in words is "twenty-five million, five hundred thousand, two hundred eighty-eight".