16859250025 has 12 divisors (see below), whose sum is σ = 21579841024. Its totient is φ = 13052322000.

The previous prime is 16859250007. The next prime is 16859250041. The reversal of 16859250025 is 52005295861.

It is not a de Polignac number, because 16859250025 - 2⁹ = 16859249513 is a prime.

It is a super-2 number, since 2×16859250025² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10876161 + ... + 10877710.

Almost surely, 2^16859250025 is an apocalyptic number.

It is an amenable number.

16859250025 is a deficient number, since it is larger than the sum of its proper divisors (4720590999).

16859250025 is a wasteful number, since it uses less digits than its factorization.

16859250025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21753912 (or 21753907 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 43.

The spelling of 16859250025 in words is "sixteen billion, eight hundred fifty-nine million, two hundred fifty thousand, twenty-five".