25485806 has 4 divisors (see below), whose sum is σ = 38228712. Its totient is φ = 12742902.

The previous prime is 25485791. The next prime is 25485827. The reversal of 25485806 is 60858452.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 25485806.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 6371450 + ... + 6371453.

It is an arithmetic number, because the mean of its divisors is an integer number (9557178).

Almost surely, 2^25485806 is an apocalyptic number.

25485806 is a deficient number, since it is larger than the sum of its proper divisors (12742906).

25485806 is a wasteful number, since it uses less digits than its factorization.

25485806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12742905.

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 25485806 is about 5048.3468581309. The cubic root of 25485806 is about 294.2836434553.

The spelling of 25485806 in words is "twenty-five million, four hundred eighty-five thousand, eight hundred six".