25882515 has 24 divisors (see below), whose sum is σ = 45483360. Its totient is φ = 13613184.

The previous prime is 25882513. The next prime is 25882523. The reversal of 25882515 is 51528852.

It is not a de Polignac number, because 25882515 - 2¹ = 25882513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25882515.

It is not an unprimeable number, because it can be changed into a prime (25882511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 655 + ... + 7224.

It is an arithmetic number, because the mean of its divisors is an integer number (1895140).

Almost surely, 2^25882515 is an apocalyptic number.

25882515 is a deficient number, since it is larger than the sum of its proper divisors (19600845).

25882515 is a wasteful number, since it uses less digits than its factorization.

25882515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7963 (or 7960 counting only the distinct ones).

The product of its digits is 32000, while the sum is 36.

The square root of 25882515 is about 5087.4861179172. The cubic root of 25882515 is about 295.8027165740.

It can be divided in two parts, 258825 and 15, that added together give a triangular number (258840 = T₇₁₉).

The spelling of 25882515 in words is "twenty-five million, eight hundred eighty-two thousand, five hundred fifteen".