52211762065 has 4 divisors (see below), whose sum is σ = 62654114484. Its totient is φ = 41769409648.

The previous prime is 52211762027. The next prime is 52211762123. The reversal of 52211762065 is 56026711225.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29974689424 + 22237072641 = 173132^2 + 149121^2 .

It is a cyclic number.

It is not a de Polignac number, because 52211762065 - 2²³ = 52203373457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5221176202 + ... + 5221176211.

It is an arithmetic number, because the mean of its divisors is an integer number (15663528621).

Almost surely, 2^52211762065 is an apocalyptic number.

It is an amenable number.

52211762065 is a deficient number, since it is larger than the sum of its proper divisors (10442352419).

52211762065 is a wasteful number, since it uses less digits than its factorization.

52211762065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10442352418.

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 52211762065 in words is "fifty-two billion, two hundred eleven million, seven hundred sixty-two thousand, sixty-five".