25349290 has 16 divisors (see below), whose sum is σ = 46034568. Its totient is φ = 10049536.

The previous prime is 25349281. The next prime is 25349293. The reversal of 25349290 is 9294352.

It can be written as a sum of positive squares in 4 ways, for example, as 18395521 + 6953769 = 4289^2 + 2637^2 .

It is not an unprimeable number, because it can be changed into a prime (25349293) 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 in 7 ways as a sum of consecutive naturals, for example, 10087 + ... + 12346.

Almost surely, 2^25349290 is an apocalyptic number.

25349290 is a deficient number, since it is larger than the sum of its proper divisors (20685278).

25349290 is a wasteful number, since it uses less digits than its factorization.

25349290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22553.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 25349290 is about 5034.8078414176. The cubic root of 25349290 is about 293.7572540837.

The spelling of 25349290 in words is "twenty-five million, three hundred forty-nine thousand, two hundred ninety".