25348815 has 32 divisors (see below), whose sum is σ = 45527040. Its totient is φ = 13380768.

The previous prime is 25348759. The next prime is 25348849. The reversal of 25348815 is 51884352.

It is a happy number.

It is not a de Polignac number, because 25348815 - 2⁸ = 25348559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25348815.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 12994 + ... + 14816.

It is an arithmetic number, because the mean of its divisors is an integer number (1422720).

Almost surely, 2^25348815 is an apocalyptic number.

25348815 is a deficient number, since it is larger than the sum of its proper divisors (20178225).

25348815 is a wasteful number, since it uses less digits than its factorization.

25348815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940 (or 1934 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 25348815 is about 5034.7606695850. The cubic root of 25348815 is about 293.7554192451.

The spelling of 25348815 in words is "twenty-five million, three hundred forty-eight thousand, eight hundred fifteen".