52356820 has 24 divisors (see below), whose sum is σ = 111500928. Its totient is φ = 20647200.

The previous prime is 52356797. The next prime is 52356827. The reversal of 52356820 is 2865325.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52356827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17016 + ... + 19855.

It is an arithmetic number, because the mean of its divisors is an integer number (4645872).

Almost surely, 2^52356820 is an apocalyptic number.

It is an amenable number.

52356820 is an abundant number, since it is smaller than the sum of its proper divisors (59144108).

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

52356820 is a wasteful number, since it uses less digits than its factorization.

52356820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36951 (or 36949 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 52356820 is about 7235.8012686917. The cubic root of 52356820 is about 374.1029104738.

The spelling of 52356820 in words is "fifty-two million, three hundred fifty-six thousand, eight hundred twenty".