52839980 has 24 divisors (see below), whose sum is σ = 113672160. Its totient is φ = 20620160.

The previous prime is 52839953. The next prime is 52839989. The reversal of 52839980 is 8993825.

It is not an unprimeable number, because it can be changed into a prime (52839989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31400 + ... + 33039.

It is an arithmetic number, because the mean of its divisors is an integer number (4736340).

Almost surely, 2^52839980 is an apocalyptic number.

It is an amenable number.

52839980 is an abundant number, since it is smaller than the sum of its proper divisors (60832180).

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

52839980 is a wasteful number, since it uses less digits than its factorization.

52839980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64489 (or 64487 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 52839980 is about 7269.1113624707. Note that the first 3 decimals coincide. The cubic root of 52839980 is about 375.2501560511.

The spelling of 52839980 in words is "fifty-two million, eight hundred thirty-nine thousand, nine hundred eighty".