52103289781 has 2 divisors, whose sum is σ = 52103289782. Its totient is φ = 52103289780.

The previous prime is 52103289761. The next prime is 52103289787. The reversal of 52103289781 is 18798230125.

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., 27537743025 + 24565546756 = 165945^2 + 156734^2 .

It is a cyclic number.

It is not a de Polignac number, because 52103289781 - 2⁷ = 52103289653 is a prime.

It is a super-2 number, since 2×52103289781² (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 (52103289787) 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, 26051644890 + 26051644891.

It is an arithmetic number, because the mean of its divisors is an integer number (26051644891).

Almost surely, 2^52103289781 is an apocalyptic number.

It is an amenable number.

52103289781 is a deficient number, since it is larger than the sum of its proper divisors (1).

52103289781 is an equidigital number, since it uses as much as digits as its factorization.

52103289781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 52103289781 in words is "fifty-two billion, one hundred three million, two hundred eighty-nine thousand, seven hundred eighty-one".