52052577781 has 2 divisors, whose sum is σ = 52052577782. Its totient is φ = 52052577780.

The previous prime is 52052577749. The next prime is 52052577793. The reversal of 52052577781 is 18777525025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51422818756 + 629759025 = 226766^2 + 25095^2 .

It is a cyclic number.

It is not a de Polignac number, because 52052577781 - 2⁵ = 52052577749 is a prime.

It is a super-2 number, since 2×52052577781² (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 (52052527781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26026288890 + 26026288891.

It is an arithmetic number, because the mean of its divisors is an integer number (26026288891).

Almost surely, 2^52052577781 is an apocalyptic number.

It is an amenable number.

52052577781 is a deficient number, since it is larger than the sum of its proper divisors (1).

52052577781 is an equidigital number, since it uses as much as digits as its factorization.

52052577781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1372000, while the sum is 49.

The spelling of 52052577781 in words is "fifty-two billion, fifty-two million, five hundred seventy-seven thousand, seven hundred eighty-one".