25589725 has 48 divisors (see below), whose sum is σ = 38568960. Its totient is φ = 16473600.

The previous prime is 25589723. The next prime is 25589771. The reversal of 25589725 is 52798552.

It is not a de Polignac number, because 25589725 - 2¹ = 25589723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25589723) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 287481 + ... + 287569.

It is an arithmetic number, because the mean of its divisors is an integer number (803520).

Almost surely, 2^25589725 is an apocalyptic number.

25589725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25589725 is a deficient number, since it is larger than the sum of its proper divisors (12979235).

25589725 is a wasteful number, since it uses less digits than its factorization.

25589725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 185 counting only the distinct ones).

The product of its digits is 252000, while the sum is 43.

The square root of 25589725 is about 5058.6287667707. The cubic root of 25589725 is about 294.6830839650.

The spelling of 25589725 in words is "twenty-five million, five hundred eighty-nine thousand, seven hundred twenty-five".