9025399856 has 20 divisors (see below), whose sum is σ = 19076413704. Its totient is φ = 4102454400.

The previous prime is 9025399853. The next prime is 9025399871. The reversal of 9025399856 is 6589935209.

It is not an unprimeable number, because it can be changed into a prime (9025399853) 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, 25640165 + ... + 25640516.

Almost surely, 2^9025399856 is an apocalyptic number.

It is an amenable number.

9025399856 is an abundant number, since it is smaller than the sum of its proper divisors (10051013848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9025399856 is a wasteful number, since it uses less digits than its factorization.

9025399856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51280700 (or 51280694 counting only the distinct ones).

The product of its (nonzero) digits is 5248800, while the sum is 56.

The square root of 9025399856 is about 95002.1044819535. The cubic root of 9025399856 is about 2082.0387935964.

The spelling of 9025399856 in words is "nine billion, twenty-five million, three hundred ninety-nine thousand, eight hundred fifty-six".