25890056 has 16 divisors (see below), whose sum is σ = 48597840. Its totient is φ = 12930640.

The previous prime is 25890049. The next prime is 25890071. The reversal of 25890056 is 65009852.

It is a junction number, because it is equal to n+sod(n) for n = 25889998 and 25890025.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13391 + ... + 15201.

It is an arithmetic number, because the mean of its divisors is an integer number (3037365).

Almost surely, 2^25890056 is an apocalyptic number.

It is an amenable number.

25890056 is a deficient number, since it is larger than the sum of its proper divisors (22707784).

25890056 is a wasteful number, since it uses less digits than its factorization.

25890056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3604 (or 3600 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 25890056 is about 5088.2271961853. The cubic root of 25890056 is about 295.8314416507.

The spelling of 25890056 in words is "twenty-five million, eight hundred ninety thousand, fifty-six".