25828585 has 4 divisors (see below), whose sum is σ = 30994308. Its totient is φ = 20662864.

The previous prime is 25828577. The next prime is 25828597. The reversal of 25828585 is 58582852.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16224784 + 9603801 = 4028^2 + 3099^2 .

It is a cyclic number.

It is not a de Polignac number, because 25828585 - 2³ = 25828577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2582854 + ... + 2582863.

It is an arithmetic number, because the mean of its divisors is an integer number (7748577).

Almost surely, 2^25828585 is an apocalyptic number.

It is an amenable number.

25828585 is a deficient number, since it is larger than the sum of its proper divisors (5165723).

25828585 is an equidigital number, since it uses as much as digits as its factorization.

25828585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5165722.

The product of its digits is 256000, while the sum is 43.

The square root of 25828585 is about 5082.1830939076. The cubic root of 25828585 is about 295.5971243273.

The spelling of 25828585 in words is "twenty-five million, eight hundred twenty-eight thousand, five hundred eighty-five".