72256583 has 4 divisors (see below), whose sum is σ = 82578960. Its totient is φ = 61934208.

The previous prime is 72256577. The next prime is 72256589. The reversal of 72256583 is 38565227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38565227 = 23 ⋅1676749.

It is an interprime number because it is at equal distance from previous prime (72256577) and next prime (72256589).

It is not a de Polignac number, because 72256583 - 2²² = 68062279 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 (72256589) 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, 5161178 + ... + 5161191.

It is an arithmetic number, because the mean of its divisors is an integer number (20644740).

Almost surely, 2^72256583 is an apocalyptic number.

72256583 is a deficient number, since it is larger than the sum of its proper divisors (10322377).

72256583 is a wasteful number, since it uses less digits than its factorization.

72256583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10322376.

The product of its digits is 100800, while the sum is 38.

The square root of 72256583 is about 8500.3872264739. The cubic root of 72256583 is about 416.5103585077.

The spelling of 72256583 in words is "seventy-two million, two hundred fifty-six thousand, five hundred eighty-three".