25529330 has 16 divisors (see below), whose sum is σ = 46018584. Its totient is φ = 10197120.

The previous prime is 25529327. The next prime is 25529351. The reversal of 25529330 is 3392552.

It can be written as a sum of positive squares in 4 ways, for example, as 25411681 + 117649 = 5041^2 + 343^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25529293 and 25529302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8054 + ... + 10766.

Almost surely, 2^25529330 is an apocalyptic number.

25529330 is a deficient number, since it is larger than the sum of its proper divisors (20489254).

25529330 is a wasteful number, since it uses less digits than its factorization.

25529330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3661.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 25529330 is about 5052.6557373326. The cubic root of 25529330 is about 294.4510715120.

The spelling of 25529330 in words is "twenty-five million, five hundred twenty-nine thousand, three hundred thirty".