52530222 has 16 divisors (see below), whose sum is σ = 105138432. Its totient is φ = 17497080.

The previous prime is 52530217. The next prime is 52530227. The reversal of 52530222 is 22203525.

It is an interprime number because it is at equal distance from previous prime (52530217) and next prime (52530227).

It is a congruent number.

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

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, 9147 + ... + 13737.

It is an arithmetic number, because the mean of its divisors is an integer number (6571152).

Almost surely, 2^52530222 is an apocalyptic number.

52530222 is an abundant number, since it is smaller than the sum of its proper divisors (52608210).

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

52530222 is a wasteful number, since it uses less digits than its factorization.

52530222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6503.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 52530222 is about 7247.7735891790. The cubic root of 52530222 is about 374.5154559596.

Adding to 52530222 its reverse (22203525), we get a palindrome (74733747).

The spelling of 52530222 in words is "fifty-two million, five hundred thirty thousand, two hundred twenty-two".