25850655536 has 20 divisors (see below), whose sum is σ = 50934556200. Its totient is φ = 12706253952.

The previous prime is 25850655533. The next prime is 25850655559. The reversal of 25850655536 is 63555605852.

It is not an unprimeable number, because it can be changed into a prime (25850655533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13691141 + ... + 13693028.

It is an arithmetic number, because the mean of its divisors is an integer number (2546727810).

Almost surely, 2^25850655536 is an apocalyptic number.

It is an amenable number.

25850655536 is a deficient number, since it is larger than the sum of its proper divisors (25083900664).

25850655536 is a wasteful number, since it uses less digits than its factorization.

25850655536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27384236 (or 27384230 counting only the distinct ones).

The product of its (nonzero) digits is 5400000, while the sum is 50.

The spelling of 25850655536 in words is "twenty-five billion, eight hundred fifty million, six hundred fifty-five thousand, five hundred thirty-six".