25809334 has 12 divisors (see below), whose sum is σ = 40859964. Its totient is φ = 12225132.

The previous prime is 25809323. The next prime is 25809337. The reversal of 25809334 is 43390852.

It is a happy number.

It is a super-2 number, since 2×25809334² = 1332243443047112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25809334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25809337) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 17152 + ... + 18595.

It is an arithmetic number, because the mean of its divisors is an integer number (3404997).

Almost surely, 2^25809334 is an apocalyptic number.

25809334 is a deficient number, since it is larger than the sum of its proper divisors (15050630).

25809334 is a wasteful number, since it uses less digits than its factorization.

25809334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35787 (or 35768 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 25809334 is about 5080.2887713200. The cubic root of 25809334 is about 295.5236662495.

The spelling of 25809334 in words is "twenty-five million, eight hundred nine thousand, three hundred thirty-four".