52221210 has 32 divisors (see below), whose sum is σ = 127101312. Its totient is φ = 13728960.

The previous prime is 52221209. The next prime is 52221241. The reversal of 52221210 is 1212225.

52221210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 52221210.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10129 + ... + 14388.

It is an arithmetic number, because the mean of its divisors is an integer number (3971916).

Almost surely, 2^52221210 is an apocalyptic number.

52221210 is an abundant number, since it is smaller than the sum of its proper divisors (74880102).

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

52221210 is a wasteful number, since it uses less digits than its factorization.

52221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24598.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 52221210 is about 7226.4244270593. The cubic root of 52221210 is about 373.7796417992.

Adding to 52221210 its reverse (1212225), we get a palindrome (53433435).

The spelling of 52221210 in words is "fifty-two million, two hundred twenty-one thousand, two hundred ten".