25825579 has 12 divisors (see below), whose sum is σ = 29358336. Its totient is φ = 22580208.

The previous prime is 25825549. The next prime is 25825609. The reversal of 25825579 is 97552852.

It is an interprime number because it is at equal distance from previous prime (25825549) and next prime (25825609).

It is not a de Polignac number, because 25825579 - 2⁷ = 25825451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25825549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1942 + ... + 7444.

It is an arithmetic number, because the mean of its divisors is an integer number (2446528).

Almost surely, 2^25825579 is an apocalyptic number.

25825579 is a deficient number, since it is larger than the sum of its proper divisors (3532757).

25825579 is a wasteful number, since it uses less digits than its factorization.

25825579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5554 (or 5535 counting only the distinct ones).

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

The square root of 25825579 is about 5081.8873462524. The cubic root of 25825579 is about 295.5856564203.

The spelling of 25825579 in words is "twenty-five million, eight hundred twenty-five thousand, five hundred seventy-nine".