53221227 has 4 divisors (see below), whose sum is σ = 70961640. Its totient is φ = 35480816.

The previous prime is 53221187. The next prime is 53221253. The reversal of 53221227 is 72212235.

It is a happy number.

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 53221227 - 2²⁴ = 36444011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53221197 and 53221206.

It is not an unprimeable number, because it can be changed into a prime (53221277) 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, 8870202 + ... + 8870207.

It is an arithmetic number, because the mean of its divisors is an integer number (17740410).

Almost surely, 2^53221227 is an apocalyptic number.

53221227 is a deficient number, since it is larger than the sum of its proper divisors (17740413).

53221227 is a wasteful number, since it uses less digits than its factorization.

53221227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17740412.

The product of its digits is 1680, while the sum is 24.

The square root of 53221227 is about 7295.2879997982. The cubic root of 53221227 is about 376.1504862960.

The spelling of 53221227 in words is "fifty-three million, two hundred twenty-one thousand, two hundred twenty-seven".