53583724681 has 2 divisors, whose sum is σ = 53583724682. Its totient is φ = 53583724680.

The previous prime is 53583724679. The next prime is 53583724687. The reversal of 53583724681 is 18642738535.

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., 41395564681 + 12188160000 = 203459^2 + 110400^2 .

It is a cyclic number.

It is not a de Polignac number, because 53583724681 - 2¹ = 53583724679 is a prime.

It is a super-2 number, since 2×53583724681² (a number of 22 digits) contains 22 as substring.

Together with 53583724679, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (53583724687) 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, 26791862340 + 26791862341.

It is an arithmetic number, because the mean of its divisors is an integer number (26791862341).

Almost surely, 2^53583724681 is an apocalyptic number.

It is an amenable number.

53583724681 is a deficient number, since it is larger than the sum of its proper divisors (1).

53583724681 is an equidigital number, since it uses as much as digits as its factorization.

53583724681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4838400, while the sum is 52.

The spelling of 53583724681 in words is "fifty-three billion, five hundred eighty-three million, seven hundred twenty-four thousand, six hundred eighty-one".