25821332 has 12 divisors (see below), whose sum is σ = 45224256. Its totient is φ = 12900120.

The previous prime is 25821329. The next prime is 25821407. The reversal of 25821332 is 23312852.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6053 + ... + 9395.

It is an arithmetic number, because the mean of its divisors is an integer number (3768688).

Almost surely, 2^25821332 is an apocalyptic number.

It is an amenable number.

25821332 is a deficient number, since it is larger than the sum of its proper divisors (19402924).

25821332 is a wasteful number, since it uses less digits than its factorization.

25821332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5278 (or 5276 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 25821332 is about 5081.4694725050. The cubic root of 25821332 is about 295.5694525744.

The spelling of 25821332 in words is "twenty-five million, eight hundred twenty-one thousand, three hundred thirty-two".