9992548565 has 4 divisors (see below), whose sum is σ = 11991058284. Its totient is φ = 7994038848.

The previous prime is 9992548561. The next prime is 9992548619. The reversal of 9992548565 is 5658452999.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2688111409 + 7304437156 = 51847^2 + 85466^2 .

It is a cyclic number.

It is not a de Polignac number, because 9992548565 - 2² = 9992548561 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9992548498 and 9992548507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9992548561) 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, 999254852 + ... + 999254861.

It is an arithmetic number, because the mean of its divisors is an integer number (2997764571).

Almost surely, 2^9992548565 is an apocalyptic number.

It is an amenable number.

9992548565 is a deficient number, since it is larger than the sum of its proper divisors (1998509719).

9992548565 is a wasteful number, since it uses less digits than its factorization.

9992548565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998509718.

The product of its digits is 34992000, while the sum is 62.

The square root of 9992548565 is about 99962.7358819275. The cubic root of 9992548565 is about 2153.8994360610.

The spelling of 9992548565 in words is "nine billion, nine hundred ninety-two million, five hundred forty-eight thousand, five hundred sixty-five".