52130222 has 4 divisors (see below), whose sum is σ = 78195336. Its totient is φ = 26065110.

The previous prime is 52130207. The next prime is 52130261. The reversal of 52130222 is 22203125.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 52130222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13032554 + ... + 13032557.

It is an arithmetic number, because the mean of its divisors is an integer number (19548834).

Almost surely, 2^52130222 is an apocalyptic number.

52130222 is a deficient number, since it is larger than the sum of its proper divisors (26065114).

52130222 is a wasteful number, since it uses less digits than its factorization.

52130222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26065113.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 52130222 is about 7220.1261761828. The cubic root of 52130222 is about 373.5624297162.

Adding to 52130222 its reverse (22203125), we get a palindrome (74333347).

The spelling of 52130222 in words is "fifty-two million, one hundred thirty thousand, two hundred twenty-two".