53640224 has 48 divisors (see below), whose sum is σ = 116466336. Its totient is φ = 24115200.

The previous prime is 53640193. The next prime is 53640271. The reversal of 53640224 is 42204635.

It is a junction number, because it is equal to n+sod(n) for n = 53640193 and 53640202.

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 7 ways as a sum of consecutive naturals, for example, 33359 + ... + 34929.

It is an arithmetic number, because the mean of its divisors is an integer number (2426382).

Almost surely, 2^53640224 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 53640224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58233168).

53640224 is an abundant number, since it is smaller than the sum of its proper divisors (62826112).

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

53640224 is a wasteful number, since it uses less digits than its factorization.

53640224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689 (or 1681 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 53640224 is about 7323.9486617534. The cubic root of 53640224 is about 377.1350190771.

Adding to 53640224 its reverse (42204635), we get a palindrome (95844859).

The spelling of 53640224 in words is "fifty-three million, six hundred forty thousand, two hundred twenty-four".