25533328 has 10 divisors (see below), whose sum is σ = 49470854. Its totient is φ = 12766656.

The previous prime is 25533323. The next prime is 25533377. The reversal of 25533328 is 82333552.

It can be written as a sum of positive squares in only one way, i.e., 16096144 + 9437184 = 4012^2 + 3072^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25533328.

It is not an unprimeable number, because it can be changed into a prime (25533323) by changing a digit.

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 as a sum of consecutive naturals, namely, 797901 + ... + 797932.

Almost surely, 2^25533328 is an apocalyptic number.

It is an amenable number.

25533328 is a deficient number, since it is larger than the sum of its proper divisors (23937526).

25533328 is a wasteful number, since it uses less digits than its factorization.

25533328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595841 (or 1595835 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

The square root of 25533328 is about 5053.0513553693. The cubic root of 25533328 is about 294.4664414667.

The spelling of 25533328 in words is "twenty-five million, five hundred thirty-three thousand, three hundred twenty-eight".