25276290 has 32 divisors (see below), whose sum is σ = 65330496. Its totient is φ = 6221760.

The previous prime is 25276243. The next prime is 25276309. The reversal of 25276290 is 9267252.

It is a happy number.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 32016 + ... + 32795.

It is an arithmetic number, because the mean of its divisors is an integer number (2041578).

Almost surely, 2^25276290 is an apocalyptic number.

25276290 is an abundant number, since it is smaller than the sum of its proper divisors (40054206).

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

25276290 is a wasteful number, since it uses less digits than its factorization.

25276290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64834.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 25276290 is about 5027.5530827630. The cubic root of 25276290 is about 293.4749990071.

The spelling of 25276290 in words is "twenty-five million, two hundred seventy-six thousand, two hundred ninety".