25425597 has 16 divisors (see below), whose sum is σ = 34836480. Its totient is φ = 16489200.

The previous prime is 25425581. The next prime is 25425671. The reversal of 25425597 is 79552452.

It is not a de Polignac number, because 25425597 - 2⁴ = 25425581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25425577) 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, 16072 + ... + 17582.

It is an arithmetic number, because the mean of its divisors is an integer number (2177280).

Almost surely, 2^25425597 is an apocalyptic number.

It is an amenable number.

25425597 is a deficient number, since it is larger than the sum of its proper divisors (9410883).

25425597 is a wasteful number, since it uses less digits than its factorization.

25425597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664.

The product of its digits is 126000, while the sum is 39.

The square root of 25425597 is about 5042.3800927736. The cubic root of 25425597 is about 294.0517170346.

The spelling of 25425597 in words is "twenty-five million, four hundred twenty-five thousand, five hundred ninety-seven".