25213328 has 20 divisors (see below), whose sum is σ = 55829760. Its totient is φ = 10805664.

The previous prime is 25213301. The next prime is 25213369. The reversal of 25213328 is 82331252.

It is a junction number, because it is equal to n+sod(n) for n = 25213297 and 25213306.

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, 112448 + ... + 112671.

It is an arithmetic number, because the mean of its divisors is an integer number (2791488).

Almost surely, 2^25213328 is an apocalyptic number.

25213328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25213328 is an abundant number, since it is smaller than the sum of its proper divisors (30616432).

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

25213328 is a wasteful number, since it uses less digits than its factorization.

25213328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225134 (or 225128 counting only the distinct ones).

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

The square root of 25213328 is about 5021.2874843012. The cubic root of 25213328 is about 293.2311191159.

The spelling of 25213328 in words is "twenty-five million, two hundred thirteen thousand, three hundred twenty-eight".