52840109 has 4 divisors (see below), whose sum is σ = 60388704. Its totient is φ = 45291516.

The previous prime is 52840093. The next prime is 52840111. The reversal of 52840109 is 90104825.

52840109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52840109 - 2⁴ = 52840093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52840129) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3774287 + ... + 3774300.

It is an arithmetic number, because the mean of its divisors is an integer number (15097176).

Almost surely, 2^52840109 is an apocalyptic number.

It is an amenable number.

52840109 is a deficient number, since it is larger than the sum of its proper divisors (7548595).

52840109 is an equidigital number, since it uses as much as digits as its factorization.

52840109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7548594.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 52840109 is about 7269.1202356269. The cubic root of 52840109 is about 375.2504614210.

The spelling of 52840109 in words is "fifty-two million, eight hundred forty thousand, one hundred nine".