25123290 has 32 divisors (see below), whose sum is σ = 60837696. Its totient is φ = 6639360.

The previous prime is 25123271. The next prime is 25123303. The reversal of 25123290 is 9232152.

It is a self number, because there is not a number n which added to its sum of digits gives 25123290.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316 + ... + 7095.

It is an arithmetic number, because the mean of its divisors is an integer number (1901178).

Almost surely, 2^25123290 is an apocalyptic number.

25123290 is an abundant number, since it is smaller than the sum of its proper divisors (35714406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25123290 is a wasteful number, since it uses less digits than its factorization.

25123290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7534.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 25123290 is about 5012.3138369420. The cubic root of 25123290 is about 292.8816553517.

The spelling of 25123290 in words is "twenty-five million, one hundred twenty-three thousand, two hundred ninety".