52105220 has 24 divisors (see below), whose sum is σ = 115180800. Its totient is φ = 19744992.

The previous prime is 52105177. The next prime is 52105231. The reversal of 52105220 is 2250125.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68180 + ... + 68939.

It is an arithmetic number, because the mean of its divisors is an integer number (4799200).

Almost surely, 2^52105220 is an apocalyptic number.

It is an amenable number.

52105220 is an abundant number, since it is smaller than the sum of its proper divisors (63075580).

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

52105220 is a wasteful number, since it uses less digits than its factorization.

52105220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137147 (or 137145 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 52105220 is about 7218.3945583488. The cubic root of 52105220 is about 373.5026991604.

Adding to 52105220 its reverse (2250125), we get a palindrome (54355345).

It can be divided in two parts, 52105 and 220, that added together give a palindrome (52325).

The spelling of 52105220 in words is "fifty-two million, one hundred five thousand, two hundred twenty".