52705045121 has 4 divisors (see below), whose sum is σ = 54522460500. Its totient is φ = 50887629744.

The previous prime is 52705045111. The next prime is 52705045153. The reversal of 52705045121 is 12154050725.

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 15986820721 + 36718224400 = 126439^2 + 191620^2 .

It is a cyclic number.

It is not a de Polignac number, because 52705045121 - 2¹⁴ = 52705028737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52705045111) 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, 908707646 + ... + 908707703.

It is an arithmetic number, because the mean of its divisors is an integer number (13630615125).

Almost surely, 2^52705045121 is an apocalyptic number.

It is an amenable number.

52705045121 is a deficient number, since it is larger than the sum of its proper divisors (1817415379).

52705045121 is a wasteful number, since it uses less digits than its factorization.

52705045121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1817415378.

The product of its (nonzero) digits is 14000, while the sum is 32.

Adding to 52705045121 its reverse (12154050725), we get a palindrome (64859095846).

The spelling of 52705045121 in words is "fifty-two billion, seven hundred five million, forty-five thousand, one hundred twenty-one".