99557023 has 4 divisors (see below), whose sum is σ = 99649368. Its totient is φ = 99464680.

The previous prime is 99557011. The next prime is 99557069. The reversal of 99557023 is 32075599.

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

It is a cyclic number.

It is not a de Polignac number, because 99557023 - 2¹³ = 99548831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99557723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44536 + ... + 46717.

It is an arithmetic number, because the mean of its divisors is an integer number (24912342).

Almost surely, 2^99557023 is an apocalyptic number.

99557023 is a deficient number, since it is larger than the sum of its proper divisors (92345).

99557023 is a wasteful number, since it uses less digits than its factorization.

99557023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92344.

The product of its (nonzero) digits is 85050, while the sum is 40.

The square root of 99557023 is about 9977.8265669433. The cubic root of 99557023 is about 463.4724964838.

The spelling of 99557023 in words is "ninety-nine million, five hundred fifty-seven thousand, twenty-three".