25567488 has 126 divisors (see below), whose sum is σ = 77076174. Its totient is φ = 8460288.

The previous prime is 25567459. The next prime is 25567523. The reversal of 25567488 is 88476552.

25567488 is a `hidden beast` number, since 2 + 5 + 567 + 4 + 88 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22581504 + 2985984 = 4752^2 + 1728^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 186556 + ... + 186692.

Almost surely, 2^25567488 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 25567488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38538087).

25567488 is an abundant number, since it is smaller than the sum of its proper divisors (51508686).

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

25567488 is an frugal number, since it uses more digits than its factorization.

25567488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 142 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 25567488 is about 5056.4303614309. The cubic root of 25567488 is about 294.5977011696.

The spelling of 25567488 in words is "twenty-five million, five hundred sixty-seven thousand, four hundred eighty-eight".