52852752781 has 2 divisors, whose sum is σ = 52852752782. Its totient is φ = 52852752780.

The previous prime is 52852752671. The next prime is 52852752791. The reversal of 52852752781 is 18725725825.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44714908681 + 8137844100 = 211459^2 + 90210^2 .

It is a cyclic number.

It is not a de Polignac number, because 52852752781 - 2¹⁷ = 52852621709 is a prime.

It is a super-2 number, since 2×52852752781² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52852752791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26426376390 + 26426376391.

It is an arithmetic number, because the mean of its divisors is an integer number (26426376391).

Almost surely, 2^52852752781 is an apocalyptic number.

It is an amenable number.

52852752781 is a deficient number, since it is larger than the sum of its proper divisors (1).

52852752781 is an equidigital number, since it uses as much as digits as its factorization.

52852752781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3136000, while the sum is 52.

The spelling of 52852752781 in words is "fifty-two billion, eight hundred fifty-two million, seven hundred fifty-two thousand, seven hundred eighty-one".