52520224 has 24 divisors (see below), whose sum is σ = 107896320. Its totient is φ = 25118016.

The previous prime is 52520219. The next prime is 52520257. The reversal of 52520224 is 42202525.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 52520195 and 52520204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34944 + ... + 36415.

It is an arithmetic number, because the mean of its divisors is an integer number (4495680).

Almost surely, 2^52520224 is an apocalyptic number.

It is an amenable number.

52520224 is an abundant number, since it is smaller than the sum of its proper divisors (55376096).

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

52520224 is a wasteful number, since it uses less digits than its factorization.

52520224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71392 (or 71384 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 52520224 is about 7247.0838273060. The cubic root of 52520224 is about 374.4916941265.

Adding to 52520224 its reverse (42202525), we get a palindrome (94722749).

The spelling of 52520224 in words is "fifty-two million, five hundred twenty thousand, two hundred twenty-four".