99523553 has 4 divisors (see below), whose sum is σ = 103850688. Its totient is φ = 95196420.

The previous prime is 99523537. The next prime is 99523561. The reversal of 99523553 is 35532599.

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 a cyclic number.

It is not a de Polignac number, because 99523553 - 2⁴ = 99523537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99523553.

It is not an unprimeable number, because it can be changed into a prime (99523153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2163533 + ... + 2163578.

It is an arithmetic number, because the mean of its divisors is an integer number (25962672).

Almost surely, 2^99523553 is an apocalyptic number.

It is an amenable number.

99523553 is a deficient number, since it is larger than the sum of its proper divisors (4327135).

99523553 is a wasteful number, since it uses less digits than its factorization.

99523553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4327134.

The product of its digits is 182250, while the sum is 41.

The square root of 99523553 is about 9976.1492069836. The cubic root of 99523553 is about 463.4205525067.

The spelling of 99523553 in words is "ninety-nine million, five hundred twenty-three thousand, five hundred fifty-three".