52113820 has 24 divisors (see below), whose sum is σ = 119388528. Its totient is φ = 18950400.

The previous prime is 52113811. The next prime is 52113833. The reversal of 52113820 is 2831125.

52113820 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 (22).

It is a junction number, because it is equal to n+sod(n) for n = 52113791 and 52113800.

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 7 ways as a sum of consecutive naturals, for example, 118221 + ... + 118660.

It is an arithmetic number, because the mean of its divisors is an integer number (4974522).

Almost surely, 2^52113820 is an apocalyptic number.

It is an amenable number.

52113820 is an abundant number, since it is smaller than the sum of its proper divisors (67274708).

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

52113820 is a wasteful number, since it uses less digits than its factorization.

52113820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236901 (or 236899 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 52113820 is about 7218.9902340978. The cubic root of 52113820 is about 373.5232469833.

Adding to 52113820 its reverse (2831125), we get a palindrome (54944945).

It can be divided in two parts, 521 and 13820, that added together give a palindrome (14341).

The spelling of 52113820 in words is "fifty-two million, one hundred thirteen thousand, eight hundred twenty".