25149328 has 10 divisors (see below), whose sum is σ = 48726854. Its totient is φ = 12574656.

The previous prime is 25149323. The next prime is 25149347. The reversal of 25149328 is 82394152.

It can be written as a sum of positive squares in only one way, i.e., 13778944 + 11370384 = 3712^2 + 3372^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25149293 and 25149302.

It is not an unprimeable number, because it can be changed into a prime (25149323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 785901 + ... + 785932.

Almost surely, 2^25149328 is an apocalyptic number.

It is an amenable number.

25149328 is a deficient number, since it is larger than the sum of its proper divisors (23577526).

25149328 is a wasteful number, since it uses less digits than its factorization.

25149328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571841 (or 1571835 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 25149328 is about 5014.9105674977. The cubic root of 25149328 is about 292.9828021294.

The spelling of 25149328 in words is "twenty-five million, one hundred forty-nine thousand, three hundred twenty-eight".