25725544 has 64 divisors (see below), whose sum is σ = 56044800. Its totient is φ = 10969344.

The previous prime is 25725533. The next prime is 25725547. The reversal of 25725544 is 44552752.

It is a super-2 number, since 2×25725544² = 1323607228191872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25725547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92734 + ... + 93010.

It is an arithmetic number, because the mean of its divisors is an integer number (875700).

Almost surely, 2^25725544 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 25725544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28022400).

25725544 is an abundant number, since it is smaller than the sum of its proper divisors (30319256).

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

25725544 is a wasteful number, since it uses less digits than its factorization.

25725544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 358 counting only the distinct ones).

The product of its digits is 56000, while the sum is 34.

The square root of 25725544 is about 5072.0354888348. The cubic root of 25725544 is about 295.2035136907.

The spelling of 25725544 in words is "twenty-five million, seven hundred twenty-five thousand, five hundred forty-four".