25930915 has 16 divisors (see below), whose sum is σ = 33073920. Its totient is φ = 19461600.

The previous prime is 25930909. The next prime is 25930937. The reversal of 25930915 is 51903952.

It is a happy number.

It is not a de Polignac number, because 25930915 - 2¹⁹ = 25406627 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8890 + ... + 11440.

It is an arithmetic number, because the mean of its divisors is an integer number (2067120).

Almost surely, 2^25930915 is an apocalyptic number.

25930915 is a deficient number, since it is larger than the sum of its proper divisors (7143005).

25930915 is a wasteful number, since it uses less digits than its factorization.

25930915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 25930915 is about 5092.2406659544. The cubic root of 25930915 is about 295.9869843011.

The spelling of 25930915 in words is "twenty-five million, nine hundred thirty thousand, nine hundred fifteen".