72235583 has 4 divisors (see below), whose sum is σ = 82554960. Its totient is φ = 61916208.

The previous prime is 72235577. The next prime is 72235591. The reversal of 72235583 is 38553227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38553227 = 113 ⋅341179.

It is a cyclic number.

It is not a de Polignac number, because 72235583 - 2²⁴ = 55458367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72235523) 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, 5159678 + ... + 5159691.

It is an arithmetic number, because the mean of its divisors is an integer number (20638740).

Almost surely, 2^72235583 is an apocalyptic number.

72235583 is a deficient number, since it is larger than the sum of its proper divisors (10319377).

72235583 is a wasteful number, since it uses less digits than its factorization.

72235583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10319376.

The product of its digits is 50400, while the sum is 35.

The square root of 72235583 is about 8499.1518988661. The cubic root of 72235583 is about 416.4700043298.

The spelling of 72235583 in words is "seventy-two million, two hundred thirty-five thousand, five hundred eighty-three".