52522928581 has 2 divisors, whose sum is σ = 52522928582. Its totient is φ = 52522928580.

The previous prime is 52522928567. The next prime is 52522928641. The reversal of 52522928581 is 18582922525.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51547615681 + 975312900 = 227041^2 + 31230^2 .

It is a cyclic number.

It is not a de Polignac number, because 52522928581 - 2¹⁹ = 52522404293 is a prime.

It is a super-2 number, since 2×52522928581² (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 (52522922581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26261464290 + 26261464291.

It is an arithmetic number, because the mean of its divisors is an integer number (26261464291).

Almost surely, 2^52522928581 is an apocalyptic number.

It is an amenable number.

52522928581 is a deficient number, since it is larger than the sum of its proper divisors (1).

52522928581 is an equidigital number, since it uses as much as digits as its factorization.

52522928581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152000, while the sum is 49.

The spelling of 52522928581 in words is "fifty-two billion, five hundred twenty-two million, nine hundred twenty-eight thousand, five hundred eighty-one".