52781797 has 2 divisors, whose sum is σ = 52781798. Its totient is φ = 52781796.

The previous prime is 52781789. The next prime is 52781819. The reversal of 52781797 is 79718725.

52781797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44102881 + 8678916 = 6641^2 + 2946^2 .

It is a cyclic number.

It is not a de Polignac number, because 52781797 - 2³ = 52781789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52781737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26390898 + 26390899.

It is an arithmetic number, because the mean of its divisors is an integer number (26390899).

Almost surely, 2^52781797 is an apocalyptic number.

It is an amenable number.

52781797 is a deficient number, since it is larger than the sum of its proper divisors (1).

52781797 is an equidigital number, since it uses as much as digits as its factorization.

52781797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 246960, while the sum is 46.

The square root of 52781797 is about 7265.1081891463. The cubic root of 52781797 is about 375.1123740259.

The spelling of 52781797 in words is "fifty-two million, seven hundred eighty-one thousand, seven hundred ninety-seven".