25515316 has 12 divisors (see below), whose sum is σ = 45004288. Its totient is φ = 12656952.

The previous prime is 25515307. The next prime is 25515337. The reversal of 25515316 is 61351552.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 24606 + ... + 25621.

Almost surely, 2^25515316 is an apocalyptic number.

It is an amenable number.

25515316 is a deficient number, since it is larger than the sum of its proper divisors (19488972).

25515316 is a wasteful number, since it uses less digits than its factorization.

25515316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50358 (or 50356 counting only the distinct ones).

The product of its digits is 4500, while the sum is 28.

The square root of 25515316 is about 5051.2687515118. The cubic root of 25515316 is about 294.3971832640.

Adding to 25515316 its reverse (61351552), we get a palindrome (86866868).

The spelling of 25515316 in words is "twenty-five million, five hundred fifteen thousand, three hundred sixteen".