52639331 has 2 divisors, whose sum is σ = 52639332. Its totient is φ = 52639330.

The previous prime is 52639313. The next prime is 52639357. The reversal of 52639331 is 13393625.

52639331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (52639313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52639331 - 2²² = 48445027 is a prime.

It is a super-2 number, since 2×52639331² = 5541798336255122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52639231) 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, 26319665 + 26319666.

It is an arithmetic number, because the mean of its divisors is an integer number (26319666).

Almost surely, 2^52639331 is an apocalyptic number.

52639331 is a deficient number, since it is larger than the sum of its proper divisors (1).

52639331 is an equidigital number, since it uses as much as digits as its factorization.

52639331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580, while the sum is 32.

The square root of 52639331 is about 7255.2967547854. The cubic root of 52639331 is about 374.7745750352.

The spelling of 52639331 in words is "fifty-two million, six hundred thirty-nine thousand, three hundred thirty-one".