25535330 has 16 divisors (see below), whose sum is σ = 46030464. Its totient is φ = 10199280.

The previous prime is 25535329. The next prime is 25535353. The reversal of 25535330 is 3353552.

It is a self number, because there is not a number n which added to its sum of digits gives 25535330.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 7709 + ... + 10511.

It is an arithmetic number, because the mean of its divisors is an integer number (2876904).

Almost surely, 2^25535330 is an apocalyptic number.

25535330 is a deficient number, since it is larger than the sum of its proper divisors (20495134).

25535330 is a wasteful number, since it uses less digits than its factorization.

25535330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3721.

The product of its (nonzero) digits is 6750, while the sum is 26.

The square root of 25535330 is about 5053.2494496116. The cubic root of 25535330 is about 294.4741373745.

Multiplying 25535330 by its sum of digits (26), we get a triangular number (663918580 = T₃₆₄₃₉).

Adding to 25535330 its reverse (3353552), we get a palindrome (28888882).

The spelling of 25535330 in words is "twenty-five million, five hundred thirty-five thousand, three hundred thirty".