72255227 has 4 divisors (see below), whose sum is σ = 78823896. Its totient is φ = 65686560.

The previous prime is 72255193. The next prime is 72255229.

72255227 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 72255227 - 2⁶ = 72255163 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72255193 and 72255202.

It is not an unprimeable number, because it can be changed into a prime (72255229) 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, 3284318 + ... + 3284339.

It is an arithmetic number, because the mean of its divisors is an integer number (19705974).

Almost surely, 2^72255227 is an apocalyptic number.

72255227 is a deficient number, since it is larger than the sum of its proper divisors (6568669).

72255227 is a wasteful number, since it uses less digits than its factorization.

72255227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6568668.

The product of its digits is 19600, while the sum is 32.

The square root of 72255227 is about 8500.3074650274. The cubic root of 72255227 is about 416.5077530170.

The spelling of 72255227 in words is "seventy-two million, two hundred fifty-five thousand, two hundred twenty-seven".