52840780 has 12 divisors (see below), whose sum is σ = 110965680. Its totient is φ = 21136304.

The previous prime is 52840769. The next prime is 52840783. The reversal of 52840780 is 8704825.

It is not an unprimeable number, because it can be changed into a prime (52840783) 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 3 ways as a sum of consecutive naturals, for example, 1321000 + ... + 1321039.

It is an arithmetic number, because the mean of its divisors is an integer number (9247140).

Almost surely, 2^52840780 is an apocalyptic number.

It is an amenable number.

52840780 is an abundant number, since it is smaller than the sum of its proper divisors (58124900).

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

52840780 is a wasteful number, since it uses less digits than its factorization.

52840780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2642048 (or 2642046 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 52840780 is about 7269.1663896213. The cubic root of 52840780 is about 375.2520498104.

The spelling of 52840780 in words is "fifty-two million, eight hundred forty thousand, seven hundred eighty".