52016220 has 36 divisors (see below), whose sum is σ = 157783080. Its totient is φ = 13870944.

The previous prime is 52016203. The next prime is 52016221. The reversal of 52016220 is 2261025.

52016220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 52016193 and 52016202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52016221) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 144310 + ... + 144669.

Almost surely, 2^52016220 is an apocalyptic number.

It is an amenable number.

52016220 is an abundant number, since it is smaller than the sum of its proper divisors (105766860).

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

52016220 is a wasteful number, since it uses less digits than its factorization.

52016220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288994 (or 288989 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 52016220 is about 7212.2271178881. The cubic root of 52016220 is about 373.2899201928.

Adding to 52016220 its reverse (2261025), we get a palindrome (54277245).

The spelling of 52016220 in words is "fifty-two million, sixteen thousand, two hundred twenty".