25990064 has 20 divisors (see below), whose sum is σ = 51585240. Its totient is φ = 12677760.

The previous prime is 25990051. The next prime is 25990067. The reversal of 25990064 is 46009952.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (25990067) 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 3 ways as a sum of consecutive naturals, for example, 19154 + ... + 20465.

It is an arithmetic number, because the mean of its divisors is an integer number (2579262).

Almost surely, 2^25990064 is an apocalyptic number.

It is an amenable number.

25990064 is a deficient number, since it is larger than the sum of its proper divisors (25595176).

25990064 is a wasteful number, since it uses less digits than its factorization.

25990064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39668 (or 39662 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 25990064 is about 5098.0451155320. The cubic root of 25990064 is about 296.2118643903.

The spelling of 25990064 in words is "twenty-five million, nine hundred ninety thousand, sixty-four".