25515085 has 8 divisors (see below), whose sum is σ = 30645216. Its totient is φ = 20394000.

The previous prime is 25515071. The next prime is 25515097. The reversal of 25515085 is 58051552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25515085 - 2⁵ = 25515053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10122 + ... + 12388.

It is an arithmetic number, because the mean of its divisors is an integer number (3830652).

Almost surely, 2^25515085 is an apocalyptic number.

It is an amenable number.

25515085 is a deficient number, since it is larger than the sum of its proper divisors (5130131).

25515085 is a wasteful number, since it uses less digits than its factorization.

25515085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4523.

The product of its (nonzero) digits is 10000, while the sum is 31.

The square root of 25515085 is about 5051.2458859177. The cubic root of 25515085 is about 294.3962948309.

The spelling of 25515085 in words is "twenty-five million, five hundred fifteen thousand, eighty-five".