25149290 has 16 divisors (see below), whose sum is σ = 47931912. Its totient is φ = 9467904.

The previous prime is 25149283. The next prime is 25149317. The reversal of 25149290 is 9294152.

It can be written as a sum of positive squares in 4 ways, for example, as 24690961 + 458329 = 4969^2 + 677^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73799 + ... + 74138.

Almost surely, 2^25149290 is an apocalyptic number.

25149290 is a deficient number, since it is larger than the sum of its proper divisors (22782622).

25149290 is a wasteful number, since it uses less digits than its factorization.

25149290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147961.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 25149290 is about 5014.9067787946. The cubic root of 25149290 is about 292.9826545661.

The spelling of 25149290 in words is "twenty-five million, one hundred forty-nine thousand, two hundred ninety".