53238797861 has 2 divisors, whose sum is σ = 53238797862. Its totient is φ = 53238797860.

The previous prime is 53238797851. The next prime is 53238797863. The reversal of 53238797861 is 16879783235.

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., 47385017761 + 5853780100 = 217681^2 + 76510^2 .

It is a cyclic number.

It is not a de Polignac number, because 53238797861 - 2³⁰ = 52165056037 is a prime.

It is a super-3 number, since 3×53238797861³ (a number of 33 digits) contains 333 as substring.

Together with 53238797863, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53238797861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53238797863) 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, 26619398930 + 26619398931.

It is an arithmetic number, because the mean of its divisors is an integer number (26619398931).

Almost surely, 2^53238797861 is an apocalyptic number.

It is an amenable number.

53238797861 is a deficient number, since it is larger than the sum of its proper divisors (1).

53238797861 is an equidigital number, since it uses as much as digits as its factorization.

53238797861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15240960, while the sum is 59.

The spelling of 53238797861 in words is "fifty-three billion, two hundred thirty-eight million, seven hundred ninety-seven thousand, eight hundred sixty-one".