25863264 has 72 divisors (see below), whose sum is σ = 84062160. Its totient is φ = 7388928.

The previous prime is 25863263. The next prime is 25863283. The reversal of 25863264 is 46236852.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25863263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4399 + ... + 8430.

It is an arithmetic number, because the mean of its divisors is an integer number (1167530).

Almost surely, 2^25863264 is an apocalyptic number.

25863264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25863264 is an abundant number, since it is smaller than the sum of its proper divisors (58198896).

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

25863264 is a wasteful number, since it uses less digits than its factorization.

25863264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12852 (or 12841 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 25863264 is about 5085.5937706427. The cubic root of 25863264 is about 295.7293606102.

The spelling of 25863264 in words is "twenty-five million, eight hundred sixty-three thousand, two hundred sixty-four".