52705687 has 2 divisors, whose sum is σ = 52705688. Its totient is φ = 52705686.

The previous prime is 52705657. The next prime is 52705693. The reversal of 52705687 is 78650725.

52705687 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 52705687 - 2¹⁹ = 52181399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52705607) 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, 26352843 + 26352844.

It is an arithmetic number, because the mean of its divisors is an integer number (26352844).

Almost surely, 2^52705687 is an apocalyptic number.

52705687 is a deficient number, since it is larger than the sum of its proper divisors (1).

52705687 is an equidigital number, since it uses as much as digits as its factorization.

52705687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 52705687 is about 7259.8682494932. The cubic root of 52705687 is about 374.9319864800.

The spelling of 52705687 in words is "fifty-two million, seven hundred five thousand, six hundred eighty-seven".