53332224 has 144 divisors (see below), whose sum is σ = 158941440. Its totient is φ = 15738880.

The previous prime is 53332217. The next prime is 53332241. The reversal of 53332224 is 42223335.

It is a super-2 number, since 2×53332224² = 5688652233572352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 53332194 and 53332203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 498379 + ... + 498485.

It is an arithmetic number, because the mean of its divisors is an integer number (1103760).

Almost surely, 2^53332224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53332224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79470720).

53332224 is an abundant number, since it is smaller than the sum of its proper divisors (105609216).

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

53332224 is a wasteful number, since it uses less digits than its factorization.

53332224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 182 counting only the distinct ones).

The product of its digits is 4320, while the sum is 24.

The square root of 53332224 is about 7302.8914821460. The cubic root of 53332224 is about 376.4118017277.

Adding to 53332224 its reverse (42223335), we get a palindrome (95555559).

Subtracting from 53332224 its reverse (42223335), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 5333 and 2224, that added together give a palindrome (7557).

The spelling of 53332224 in words is "fifty-three million, three hundred thirty-two thousand, two hundred twenty-four".