99992565 has 24 divisors (see below), whose sum is σ = 173553120. Its totient is φ = 53257824.

The previous prime is 99992539. The next prime is 99992617. The reversal of 99992565 is 56529999.

It is not a de Polignac number, because 99992565 - 2⁵ = 99992533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64894 + ... + 66416.

It is an arithmetic number, because the mean of its divisors is an integer number (7231380).

Almost surely, 2^99992565 is an apocalyptic number.

It is an amenable number.

99992565 is a deficient number, since it is larger than the sum of its proper divisors (73560555).

99992565 is a wasteful number, since it uses less digits than its factorization.

99992565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2993 (or 2990 counting only the distinct ones).

The product of its digits is 1968300, while the sum is 54.

The square root of 99992565 is about 9999.6282430898. The cubic root of 99992565 is about 464.1473796718.

The spelling of 99992565 in words is "ninety-nine million, nine hundred ninety-two thousand, five hundred sixty-five".