275811055511 has 2 divisors, whose sum is σ = 275811055512. Its totient is φ = 275811055510.

The previous prime is 275811055459. The next prime is 275811055523. The reversal of 275811055511 is 115550118572.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 275811055511 - 2¹⁸ = 275810793367 is a prime.

It is a super-2 number, since 2×275811055511² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275811055111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137905527755 + 137905527756.

It is an arithmetic number, because the mean of its divisors is an integer number (137905527756).

Almost surely, 2^275811055511 is an apocalyptic number.

275811055511 is a deficient number, since it is larger than the sum of its proper divisors (1).

275811055511 is an equidigital number, since it uses as much as digits as its factorization.

275811055511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70000, while the sum is 41.

The spelling of 275811055511 in words is "two hundred seventy-five billion, eight hundred eleven million, fifty-five thousand, five hundred eleven".