99558543 has 24 divisors (see below), whose sum is σ = 156608640. Its totient is φ = 56083440.

The previous prime is 99558541. The next prime is 99558587. The reversal of 99558543 is 34585599.

It is a happy number.

It is not a de Polignac number, because 99558543 - 2¹ = 99558541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99558492 and 99558501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99558541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5668 + ... + 15206.

It is an arithmetic number, because the mean of its divisors is an integer number (6525360).

Almost surely, 2^99558543 is an apocalyptic number.

99558543 is a deficient number, since it is larger than the sum of its proper divisors (57050097).

99558543 is a wasteful number, since it uses less digits than its factorization.

99558543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9627 (or 9620 counting only the distinct ones).

The product of its digits is 972000, while the sum is 48.

The square root of 99558543 is about 9977.9027355452. The cubic root of 99558543 is about 463.4748551810.

The spelling of 99558543 in words is "ninety-nine million, five hundred fifty-eight thousand, five hundred forty-three".