52985839 has 2 divisors, whose sum is σ = 52985840. Its totient is φ = 52985838.

The previous prime is 52985837. The next prime is 52985843. The reversal of 52985839 is 93858925.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52985839 - 2¹ = 52985837 is a prime.

Together with 52985837, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 52985792 and 52985801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52985837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26492919 + 26492920.

It is an arithmetic number, because the mean of its divisors is an integer number (26492920).

Almost surely, 2^52985839 is an apocalyptic number.

52985839 is a deficient number, since it is larger than the sum of its proper divisors (1).

52985839 is an equidigital number, since it uses as much as digits as its factorization.

52985839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777600, while the sum is 49.

The square root of 52985839 is about 7279.1372428331. The cubic root of 52985839 is about 375.5951178745.

It can be divided in two parts, 52985 and 839, that added together give a square (53824 = 232²).

The spelling of 52985839 in words is "fifty-two million, nine hundred eighty-five thousand, eight hundred thirty-nine".