53018027693 has 2 divisors, whose sum is σ = 53018027694. Its totient is φ = 53018027692.

The previous prime is 53018027681. The next prime is 53018027801. The reversal of 53018027693 is 39672081035.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43429309609 + 9588718084 = 208397^2 + 97922^2 .

It is a cyclic number.

It is not a de Polignac number, because 53018027693 - 2²⁰ = 53016979117 is a prime.

It is a super-2 number, since 2×53018027693² (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 (53018023693) 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, 26509013846 + 26509013847.

It is an arithmetic number, because the mean of its divisors is an integer number (26509013847).

Almost surely, 2^53018027693 is an apocalyptic number.

It is an amenable number.

53018027693 is a deficient number, since it is larger than the sum of its proper divisors (1).

53018027693 is an equidigital number, since it uses as much as digits as its factorization.

53018027693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 53018027693 in words is "fifty-three billion, eighteen million, twenty-seven thousand, six hundred ninety-three".