89975529523 has 4 divisors (see below), whose sum is σ = 98155123128. Its totient is φ = 81795935920.

The previous prime is 89975529503. The next prime is 89975529529. The reversal of 89975529523 is 32592557998.

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 89975529523 - 2⁵ = 89975529491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89975529529) 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, 4089796786 + ... + 4089796807.

It is an arithmetic number, because the mean of its divisors is an integer number (24538780782).

Almost surely, 2^89975529523 is an apocalyptic number.

89975529523 is a deficient number, since it is larger than the sum of its proper divisors (8179593605).

89975529523 is a wasteful number, since it uses less digits than its factorization.

89975529523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8179593604.

The product of its digits is 61236000, while the sum is 64.

The spelling of 89975529523 in words is "eighty-nine billion, nine hundred seventy-five million, five hundred twenty-nine thousand, five hundred twenty-three".