53913242681 has 2 divisors, whose sum is σ = 53913242682. Its totient is φ = 53913242680.

The previous prime is 53913242671. The next prime is 53913242687. The reversal of 53913242681 is 18624231935.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52800686656 + 1112556025 = 229784^2 + 33355^2 .

It is a cyclic number.

It is not a de Polignac number, because 53913242681 - 2²² = 53909048377 is a prime.

It is a super-2 number, since 2×53913242681² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53913242687) 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, 26956621340 + 26956621341.

It is an arithmetic number, because the mean of its divisors is an integer number (26956621341).

Almost surely, 2^53913242681 is an apocalyptic number.

It is an amenable number.

53913242681 is a deficient number, since it is larger than the sum of its proper divisors (1).

53913242681 is an equidigital number, since it uses as much as digits as its factorization.

53913242681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 44.

The spelling of 53913242681 in words is "fifty-three billion, nine hundred thirteen million, two hundred forty-two thousand, six hundred eighty-one".