25260515 has 16 divisors (see below), whose sum is σ = 34871232. Its totient is φ = 17207424.

The previous prime is 25260503. The next prime is 25260517. The reversal of 25260515 is 51506252.

It is a cyclic number.

It is not a de Polignac number, because 25260515 - 2⁸ = 25260259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25260517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3197 + ... + 7793.

It is an arithmetic number, because the mean of its divisors is an integer number (2179452).

Almost surely, 2^25260515 is an apocalyptic number.

25260515 is a deficient number, since it is larger than the sum of its proper divisors (9610717).

25260515 is a wasteful number, since it uses less digits than its factorization.

25260515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4766.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 25260515 is about 5025.9839832614. The cubic root of 25260515 is about 293.4139334584.

Adding to 25260515 its reverse (51506252), we get a palindrome (76766767).

The spelling of 25260515 in words is "twenty-five million, two hundred sixty thousand, five hundred fifteen".