72226551433 has 4 divisors (see below), whose sum is σ = 72228457540. Its totient is φ = 72224645328.

The previous prime is 72226551403. The next prime is 72226551437. The reversal of 72226551433 is 33415562227.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20825953344 + 51400598089 = 144312^2 + 226717^2 .

It is a cyclic number.

It is not a de Polignac number, because 72226551433 - 2¹⁷ = 72226420361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72226551437) 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, 895038 + ... + 972391.

It is an arithmetic number, because the mean of its divisors is an integer number (18057114385).

Almost surely, 2^72226551433 is an apocalyptic number.

It is an amenable number.

72226551433 is a deficient number, since it is larger than the sum of its proper divisors (1906107).

72226551433 is a wasteful number, since it uses less digits than its factorization.

72226551433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906106.

The product of its digits is 302400, while the sum is 40.

The spelling of 72226551433 in words is "seventy-two billion, two hundred twenty-six million, five hundred fifty-one thousand, four hundred thirty-three".