52120220 has 12 divisors (see below), whose sum is σ = 109452504. Its totient is φ = 20848080.

The previous prime is 52120219. The next prime is 52120241. The reversal of 52120220 is 2202125.

52120220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 52120195 and 52120204.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1302986 + ... + 1303025.

It is an arithmetic number, because the mean of its divisors is an integer number (9121042).

Almost surely, 2^52120220 is an apocalyptic number.

It is an amenable number.

52120220 is an abundant number, since it is smaller than the sum of its proper divisors (57332284).

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

52120220 is a wasteful number, since it uses less digits than its factorization.

52120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2606020 (or 2606018 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 52120220 is about 7219.4334957807. The cubic root of 52120220 is about 373.5385369194.

Adding to 52120220 its reverse (2202125), we get a palindrome (54322345).

The spelling of 52120220 in words is "fifty-two million, one hundred twenty thousand, two hundred twenty".