53227818 has 72 divisors (see below), whose sum is σ = 138848580. Its totient is φ = 14676480.

The previous prime is 53227763. The next prime is 53227843. The reversal of 53227818 is 81872235.

It can be written as a sum of positive squares in 2 ways, for example, as 53100369 + 127449 = 7287^2 + 357^2 .

It is a super-2 number, since 2×53227818² = 5666401218082248, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 24538 + ... + 26618.

Almost surely, 2^53227818 is an apocalyptic number.

53227818 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 53227818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69424290).

53227818 is an abundant number, since it is smaller than the sum of its proper divisors (85620762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53227818 is a wasteful number, since it uses less digits than its factorization.

53227818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132 (or 2122 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 53227818 is about 7295.7397157519. The cubic root of 53227818 is about 376.1660133433.

It can be divided in two parts, 53227 and 818, that added together give a palindrome (54045).

The spelling of 53227818 in words is "fifty-three million, two hundred twenty-seven thousand, eight hundred eighteen".