52311439 has 2 divisors, whose sum is σ = 52311440. Its totient is φ = 52311438.

The previous prime is 52311433. The next prime is 52311461. The reversal of 52311439 is 93411325.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52311439 - 2⁹ = 52310927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52311433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26155719 + 26155720.

It is an arithmetic number, because the mean of its divisors is an integer number (26155720).

Almost surely, 2^52311439 is an apocalyptic number.

52311439 is a deficient number, since it is larger than the sum of its proper divisors (1).

52311439 is an equidigital number, since it uses as much as digits as its factorization.

52311439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 28.

The square root of 52311439 is about 7232.6647233229. The cubic root of 52311439 is about 373.9947929346.

It can be divided in two parts, 5231 and 1439, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 52311439 in words is "fifty-two million, three hundred eleven thousand, four hundred thirty-nine".