9025399857 has 4 divisors (see below), whose sum is σ = 12033866480. Its totient is φ = 6016933236.

The previous prime is 9025399853. The next prime is 9025399871. The reversal of 9025399857 is 7589935209.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 9025399857 - 2² = 9025399853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9025399797 and 9025399806.

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, 1504233307 + ... + 1504233312.

It is an arithmetic number, because the mean of its divisors is an integer number (3008466620).

Almost surely, 2^9025399857 is an apocalyptic number.

It is an amenable number.

9025399857 is a deficient number, since it is larger than the sum of its proper divisors (3008466623).

9025399857 is a wasteful number, since it uses less digits than its factorization.

9025399857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3008466622.

The product of its (nonzero) digits is 6123600, while the sum is 57.

The square root of 9025399857 is about 95002.1044872165. The cubic root of 9025399857 is about 2082.0387936733.

The spelling of 9025399857 in words is "nine billion, twenty-five million, three hundred ninety-nine thousand, eight hundred fifty-seven".