53072224 has 24 divisors (see below), whose sum is σ = 109030320. Its totient is φ = 25382016.

The previous prime is 53072219. The next prime is 53072251. The reversal of 53072224 is 42227035.

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 in 3 ways as a sum of consecutive naturals, for example, 35319 + ... + 36790.

It is an arithmetic number, because the mean of its divisors is an integer number (4542930).

Almost surely, 2^53072224 is an apocalyptic number.

It is an amenable number.

53072224 is an abundant number, since it is smaller than the sum of its proper divisors (55958096).

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

53072224 is a wasteful number, since it uses less digits than its factorization.

53072224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72142 (or 72134 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 53072224 is about 7285.0685652230. The cubic root of 53072224 is about 375.7991231222.

Adding to 53072224 its reverse (42227035), we get a palindrome (95299259).

The spelling of 53072224 in words is "fifty-three million, seventy-two thousand, two hundred twenty-four".