52711645121 has 4 divisors (see below), whose sum is σ = 53997295044. Its totient is φ = 51425995200.

The previous prime is 52711645117. The next prime is 52711645123. The reversal of 52711645121 is 12154611725.

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 27529446400 + 25182198721 = 165920^2 + 158689^2 .

It is a cyclic number.

It is not a de Polignac number, because 52711645121 - 2² = 52711645117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52711645123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642824900 + ... + 642824981.

It is an arithmetic number, because the mean of its divisors is an integer number (13499323761).

Almost surely, 2^52711645121 is an apocalyptic number.

It is an amenable number.

52711645121 is a deficient number, since it is larger than the sum of its proper divisors (1285649923).

52711645121 is a wasteful number, since it uses less digits than its factorization.

52711645121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285649922.

The product of its digits is 16800, while the sum is 35.

The spelling of 52711645121 in words is "fifty-two billion, seven hundred eleven million, six hundred forty-five thousand, one hundred twenty-one".