52756277681 has 8 divisors (see below), whose sum is σ = 54643959720. Its totient is φ = 50873162368.

The previous prime is 52756277663. The next prime is 52756277689. The reversal of 52756277681 is 18677265725.

It can be written as a sum of positive squares in 4 ways, for example, as 19318498081 + 33437779600 = 138991^2 + 182860^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52756277681 - 2¹⁸ = 52756015537 is a prime.

It is a super-2 number, since 2×52756277681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52756277689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1118156 + ... + 1164381.

It is an arithmetic number, because the mean of its divisors is an integer number (6830494965).

Almost surely, 2^52756277681 is an apocalyptic number.

It is an amenable number.

52756277681 is a deficient number, since it is larger than the sum of its proper divisors (1887682039).

52756277681 is a wasteful number, since it uses less digits than its factorization.

52756277681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2283363.

The product of its digits is 9878400, while the sum is 56.

The spelling of 52756277681 in words is "fifty-two billion, seven hundred fifty-six million, two hundred seventy-seven thousand, six hundred eighty-one".