25872615 has 40 divisors (see below), whose sum is σ = 46760208. Its totient is φ = 13685760.

The previous prime is 25872577. The next prime is 25872617. The reversal of 25872615 is 51627852.

It is a happy number.

It is not a de Polignac number, because 25872615 - 2¹⁴ = 25856231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25872615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25872617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 78000 + ... + 78330.

Almost surely, 2^25872615 is an apocalyptic number.

25872615 is a deficient number, since it is larger than the sum of its proper divisors (20887593).

25872615 is a wasteful number, since it uses less digits than its factorization.

25872615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541 (or 532 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 25872615 is about 5086.5130492313. The cubic root of 25872615 is about 295.7649971542.

The spelling of 25872615 in words is "twenty-five million, eight hundred seventy-two thousand, six hundred fifteen".