52577850581 has 2 divisors, whose sum is σ = 52577850582. Its totient is φ = 52577850580.

The previous prime is 52577850527. The next prime is 52577850587. The reversal of 52577850581 is 18505877525.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51995400625 + 582449956 = 228025^2 + 24134^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52577850581 is a prime.

It is a super-2 number, since 2×52577850581² (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 (52577850587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26288925290 + 26288925291.

It is an arithmetic number, because the mean of its divisors is an integer number (26288925291).

Almost surely, 2^52577850581 is an apocalyptic number.

It is an amenable number.

52577850581 is a deficient number, since it is larger than the sum of its proper divisors (1).

52577850581 is an equidigital number, since it uses as much as digits as its factorization.

52577850581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3920000, while the sum is 53.

The spelling of 52577850581 in words is "fifty-two billion, five hundred seventy-seven million, eight hundred fifty thousand, five hundred eighty-one".