53227809 has 6 divisors (see below), whose sum is σ = 76884626. Its totient is φ = 35485200.

The previous prime is 53227763. The next prime is 53227843. The reversal of 53227809 is 90872235.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 27248400 + 25979409 = 5220^2 + 5097^2 .

It is not a de Polignac number, because 53227809 - 2¹⁶ = 53162273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53227879) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2957092 + ... + 2957109.

Almost surely, 2^53227809 is an apocalyptic number.

It is an amenable number.

53227809 is a deficient number, since it is larger than the sum of its proper divisors (23656817).

53227809 is a wasteful number, since it uses less digits than its factorization.

53227809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5914207 (or 5914204 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 53227809 is about 7295.7390989536. The cubic root of 53227809 is about 376.1659921420.

It can be divided in two parts, 5322 and 7809, that added together give a palindrome (13131).

The spelling of 53227809 in words is "fifty-three million, two hundred twenty-seven thousand, eight hundred nine".