53505035081 has 2 divisors, whose sum is σ = 53505035082. Its totient is φ = 53505035080.

The previous prime is 53505035021. The next prime is 53505035083. The reversal of 53505035081 is 18053050535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49591281481 + 3913753600 = 222691^2 + 62560^2 .

It is a cyclic number.

It is not a de Polignac number, because 53505035081 - 2¹⁰ = 53505034057 is a prime.

It is a super-2 number, since 2×53505035081² (a number of 22 digits) contains 22 as substring.

Together with 53505035083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53505035083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26752517540 + 26752517541.

It is an arithmetic number, because the mean of its divisors is an integer number (26752517541).

Almost surely, 2^53505035081 is an apocalyptic number.

It is an amenable number.

53505035081 is a deficient number, since it is larger than the sum of its proper divisors (1).

53505035081 is an equidigital number, since it uses as much as digits as its factorization.

53505035081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 53505035081 in words is "fifty-three billion, five hundred five million, thirty-five thousand, eighty-one".