555051101081 has 2 divisors, whose sum is σ = 555051101082. Its totient is φ = 555051101080.

The previous prime is 555051101027. The next prime is 555051101083. The reversal of 555051101081 is 180101150555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 438851926681 + 116199174400 = 662459^2 + 340880^2 .

It is a cyclic number.

It is not a de Polignac number, because 555051101081 - 2¹⁰ = 555051100057 is a prime.

It is a super-2 number, since 2×555051101081² (a number of 24 digits) contains 22 as substring.

Together with 555051101083, 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 (555051101083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277525550540 + 277525550541.

It is an arithmetic number, because the mean of its divisors is an integer number (277525550541).

Almost surely, 2^555051101081 is an apocalyptic number.

It is an amenable number.

555051101081 is a deficient number, since it is larger than the sum of its proper divisors (1).

555051101081 is an equidigital number, since it uses as much as digits as its factorization.

555051101081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5000, while the sum is 32.

The spelling of 555051101081 in words is "five hundred fifty-five billion, fifty-one million, one hundred one thousand, eighty-one".