25280090 has 16 divisors (see below), whose sum is σ = 49641120. Its totient is φ = 9192720.

The previous prime is 25280081. The next prime is 25280113. The reversal of 25280090 is 9008252.

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, 114800 + ... + 115019.

It is an arithmetic number, because the mean of its divisors is an integer number (3102570).

Almost surely, 2^25280090 is an apocalyptic number.

25280090 is a deficient number, since it is larger than the sum of its proper divisors (24361030).

25280090 is a wasteful number, since it uses less digits than its factorization.

25280090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229837.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 25280090 is about 5027.9309860021. The cubic root of 25280090 is about 293.4897051357.

The spelling of 25280090 in words is "twenty-five million, two hundred eighty thousand, ninety".