25490330 has 16 divisors (see below), whose sum is σ = 45944064. Its totient is φ = 10182480.

The previous prime is 25490323. The next prime is 25490341. The reversal of 25490330 is 3309452.

It is a self number, because there is not a number n which added to its sum of digits gives 25490330.

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, 9875 + ... + 12185.

It is an arithmetic number, because the mean of its divisors is an integer number (2871504).

Almost surely, 2^25490330 is an apocalyptic number.

25490330 is a deficient number, since it is larger than the sum of its proper divisors (20453734).

25490330 is a wasteful number, since it uses less digits than its factorization.

25490330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3421.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 25490330 is about 5048.7949057176. The cubic root of 25490330 is about 294.3010552443.

Adding to 25490330 its reverse (3309452), we get a palindrome (28799782).

The spelling of 25490330 in words is "twenty-five million, four hundred ninety thousand, three hundred thirty".