25216814 has 16 divisors (see below), whose sum is σ = 45772128. Its totient is φ = 10171392.

The previous prime is 25216783. The next prime is 25216843. The reversal of 25216814 is 41861252.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52739 + ... + 53214.

It is an arithmetic number, because the mean of its divisors is an integer number (2860758).

Almost surely, 2^25216814 is an apocalyptic number.

25216814 is a deficient number, since it is larger than the sum of its proper divisors (20555314).

25216814 is a wasteful number, since it uses less digits than its factorization.

25216814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105979.

The product of its digits is 3840, while the sum is 29.

The square root of 25216814 is about 5021.6345944324. The cubic root of 25216814 is about 293.2446325584.

The spelling of 25216814 in words is "twenty-five million, two hundred sixteen thousand, eight hundred fourteen".