52840231 has 2 divisors, whose sum is σ = 52840232. Its totient is φ = 52840230.

The previous prime is 52840219. The next prime is 52840237. The reversal of 52840231 is 13204825.

52840231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52840231 - 2⁹ = 52839719 is a prime.

It is a super-2 number, since 2×52840231² = 5584180024266722, which contains 22 as substring.

It is equal to p_3161068 and since 52840231 and 3161068 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 52840196 and 52840205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52840237) 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 as a sum of consecutive naturals, namely, 26420115 + 26420116.

It is an arithmetic number, because the mean of its divisors is an integer number (26420116).

Almost surely, 2^52840231 is an apocalyptic number.

52840231 is a deficient number, since it is larger than the sum of its proper divisors (1).

52840231 is an equidigital number, since it uses as much as digits as its factorization.

52840231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 52840231 is about 7269.1286272840. The cubic root of 52840231 is about 375.2507502201.

The spelling of 52840231 in words is "fifty-two million, eight hundred forty thousand, two hundred thirty-one".