52840100 has 18 divisors (see below), whose sum is σ = 114663234. Its totient is φ = 21136000.

The previous prime is 52840093. The next prime is 52840111. The reversal of 52840100 is 104825.

It can be written as a sum of positive squares in 3 ways, for example, as 14622976 + 38217124 = 3824^2 + 6182^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 264101 + ... + 264300.

Almost surely, 2^52840100 is an apocalyptic number.

52840100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52840100 is an abundant number, since it is smaller than the sum of its proper divisors (61823134).

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

52840100 is a wasteful number, since it uses less digits than its factorization.

52840100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528415 (or 528408 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 52840100 is about 7269.1196165698. The cubic root of 52840100 is about 375.2504401162.

Adding to 52840100 its reverse (104825), we get a palindrome (52944925).

The spelling of 52840100 in words is "fifty-two million, eight hundred forty thousand, one hundred".