25252615 has 16 divisors (see below), whose sum is σ = 32065920. Its totient is φ = 19038240.

The previous prime is 25252609. The next prime is 25252639. The reversal of 25252615 is 51625252.

It is not a de Polignac number, because 25252615 - 2²¹ = 23155463 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20980 + ... + 22150.

It is an arithmetic number, because the mean of its divisors is an integer number (2004120).

Almost surely, 2^25252615 is an apocalyptic number.

25252615 is a deficient number, since it is larger than the sum of its proper divisors (6813305).

25252615 is a wasteful number, since it uses less digits than its factorization.

25252615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422.

The product of its digits is 6000, while the sum is 28.

The square root of 25252615 is about 5025.1980060491. The cubic root of 25252615 is about 293.3833427419.

Adding to 25252615 its reverse (51625252), we get a palindrome (76877867).

The spelling of 25252615 in words is "twenty-five million, two hundred fifty-two thousand, six hundred fifteen".