52687939 has 2 divisors, whose sum is σ = 52687940. Its totient is φ = 52687938.

The previous prime is 52687937. The next prime is 52687949. The reversal of 52687939 is 93978625.

52687939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52687939 - 2¹ = 52687937 is a prime.

Together with 52687937, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 52687892 and 52687901.

It is not a weakly prime, because it can be changed into another prime (52687933) 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, 26343969 + 26343970.

It is an arithmetic number, because the mean of its divisors is an integer number (26343970).

Almost surely, 2^52687939 is an apocalyptic number.

52687939 is a deficient number, since it is larger than the sum of its proper divisors (1).

52687939 is an equidigital number, since it uses as much as digits as its factorization.

52687939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 49.

The square root of 52687939 is about 7258.6458103423. The cubic root of 52687939 is about 374.8898971576.

The spelling of 52687939 in words is "fifty-two million, six hundred eighty-seven thousand, nine hundred thirty-nine".