25155264 has 56 divisors (see below), whose sum is σ = 68374768. Its totient is φ = 8156160.

The previous prime is 25155239. The next prime is 25155287. The reversal of 25155264 is 46255152.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5334 + ... + 8874.

It is an arithmetic number, because the mean of its divisors is an integer number (1220978).

Almost surely, 2^25155264 is an apocalyptic number.

25155264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25155264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34187384).

25155264 is an abundant number, since it is smaller than the sum of its proper divisors (43219504).

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

25155264 is a wasteful number, since it uses less digits than its factorization.

25155264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3593 (or 3583 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 25155264 is about 5015.5023676597. The cubic root of 25155264 is about 293.0058512423.

The spelling of 25155264 in words is "twenty-five million, one hundred fifty-five thousand, two hundred sixty-four".