72530022203 has 4 divisors (see below), whose sum is σ = 72530787720. Its totient is φ = 72529256688.

The previous prime is 72530022193. The next prime is 72530022233. The reversal of 72530022203 is 30222003527.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 72530022203 - 2¹⁴ = 72530005819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72530022233) 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, 216593 + ... + 438146.

It is an arithmetic number, because the mean of its divisors is an integer number (18132696930).

Almost surely, 2^72530022203 is an apocalyptic number.

72530022203 is a deficient number, since it is larger than the sum of its proper divisors (765517).

72530022203 is a wasteful number, since it uses less digits than its factorization.

72530022203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765516.

The product of its (nonzero) digits is 5040, while the sum is 26.

The spelling of 72530022203 in words is "seventy-two billion, five hundred thirty million, twenty-two thousand, two hundred three".