53247232 has 18 divisors (see below), whose sum is σ = 106286978. Its totient is φ = 26623488.

The previous prime is 53247223. The next prime is 53247241. The reversal of 53247232 is 23274235.

It is an interprime number because it is at equal distance from previous prime (53247223) and next prime (53247241).

It can be written as a sum of positive squares in only one way, i.e., 35808256 + 17438976 = 5984^2 + 4176^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53247232.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 103743 + ... + 104254.

Almost surely, 2^53247232 is an apocalyptic number.

It is an amenable number.

53247232 is a deficient number, since it is larger than the sum of its proper divisors (53039746).

53247232 is an equidigital number, since it uses as much as digits as its factorization.

53247232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208013 (or 207999 counting only the distinct ones).

The product of its digits is 10080, while the sum is 28.

The square root of 53247232 is about 7297.0700969636. The cubic root of 53247232 is about 376.2117413076.

The spelling of 53247232 in words is "fifty-three million, two hundred forty-seven thousand, two hundred thirty-two".