52530220 has 12 divisors (see below), whose sum is σ = 110313504. Its totient is φ = 21012080.

The previous prime is 52530217. The next prime is 52530227. The reversal of 52530220 is 2203525.

It is not an unprimeable number, because it can be changed into a prime (52530227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1313236 + ... + 1313275.

It is an arithmetic number, because the mean of its divisors is an integer number (9192792).

Almost surely, 2^52530220 is an apocalyptic number.

It is an amenable number.

52530220 is an abundant number, since it is smaller than the sum of its proper divisors (57783284).

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

52530220 is a wasteful number, since it uses less digits than its factorization.

52530220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2626520 (or 2626518 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 52530220 is about 7247.7734512055. The cubic root of 52530220 is about 374.5154512066.

Adding to 52530220 its reverse (2203525), we get a palindrome (54733745).

The spelling of 52530220 in words is "fifty-two million, five hundred thirty thousand, two hundred twenty".