53185458121 has 2 divisors, whose sum is σ = 53185458122. Its totient is φ = 53185458120.

The previous prime is 53185458101. The next prime is 53185458149. The reversal of 53185458121 is 12185458135.

53185458121 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., 51519920400 + 1665537721 = 226980^2 + 40811^2 .

It is a cyclic number.

It is not a de Polignac number, because 53185458121 - 2¹¹ = 53185456073 is a prime.

It is not a weakly prime, because it can be changed into another prime (53185458101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26592729060 + 26592729061.

It is an arithmetic number, because the mean of its divisors is an integer number (26592729061).

Almost surely, 2^53185458121 is an apocalyptic number.

It is an amenable number.

53185458121 is a deficient number, since it is larger than the sum of its proper divisors (1).

53185458121 is an equidigital number, since it uses as much as digits as its factorization.

53185458121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192000, while the sum is 43.

The spelling of 53185458121 in words is "fifty-three billion, one hundred eighty-five million, four hundred fifty-eight thousand, one hundred twenty-one".