90555326833 has 4 divisors (see below), whose sum is σ = 93677924340. Its totient is φ = 87432729328.

The previous prime is 90555326809. The next prime is 90555326837. The reversal of 90555326833 is 33862355509.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33862355509 = 4931 ⋅6867239.

It can be written as a sum of positive squares in 2 ways, for example, as 35926548849 + 54628777984 = 189543^2 + 233728^2 .

It is a cyclic number.

It is not a de Polignac number, because 90555326833 - 2²⁹ = 90018455921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90555326837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1561298710 + ... + 1561298767.

It is an arithmetic number, because the mean of its divisors is an integer number (23419481085).

Almost surely, 2^90555326833 is an apocalyptic number.

It is an amenable number.

90555326833 is a deficient number, since it is larger than the sum of its proper divisors (3122597507).

90555326833 is a wasteful number, since it uses less digits than its factorization.

90555326833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3122597506.

The product of its (nonzero) digits is 2916000, while the sum is 49.

The spelling of 90555326833 in words is "ninety billion, five hundred fifty-five million, three hundred twenty-six thousand, eight hundred thirty-three".