25628288 has 32 divisors (see below), whose sum is σ = 58352160. Its totient is φ = 10983168.

The previous prime is 25628269. The next prime is 25628293. The reversal of 25628288 is 88282652.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13406 + ... + 15197.

It is an arithmetic number, because the mean of its divisors is an integer number (1823505).

Almost surely, 2^25628288 is an apocalyptic number.

25628288 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25628288 is an abundant number, since it is smaller than the sum of its proper divisors (32723872).

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

25628288 is an equidigital number, since it uses as much as digits as its factorization.

25628288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28624 (or 28612 counting only the distinct ones).

The product of its digits is 122880, while the sum is 41.

The square root of 25628288 is about 5062.4389379034. The cubic root of 25628288 is about 294.8310360591.

The spelling of 25628288 in words is "twenty-five million, six hundred twenty-eight thousand, two hundred eighty-eight".