25643364 has 24 divisors (see below), whose sum is σ = 60089568. Its totient is φ = 8511360.

The previous prime is 25643357. The next prime is 25643383. The reversal of 25643364 is 46334652.

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, 1542 + ... + 7325.

It is an arithmetic number, because the mean of its divisors is an integer number (2503732).

Almost surely, 2^25643364 is an apocalyptic number.

It is an amenable number.

25643364 is an abundant number, since it is smaller than the sum of its proper divisors (34446204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25643364 is a wasteful number, since it uses less digits than its factorization.

25643364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9115 (or 9113 counting only the distinct ones).

The product of its digits is 51840, while the sum is 33.

The square root of 25643364 is about 5063.9277246027. The cubic root of 25643364 is about 294.8888367910. Note that the first 4 decimals are identical.

The spelling of 25643364 in words is "twenty-five million, six hundred forty-three thousand, three hundred sixty-four".