555055005091 has 2 divisors, whose sum is σ = 555055005092. Its totient is φ = 555055005090.

The previous prime is 555055005079. The next prime is 555055005101. The reversal of 555055005091 is 190500550555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 555055005091 - 2¹¹ = 555055003043 is a prime.

It is not a weakly prime, because it can be changed into another prime (555055005391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277527502545 + 277527502546.

It is an arithmetic number, because the mean of its divisors is an integer number (277527502546).

Almost surely, 2^555055005091 is an apocalyptic number.

555055005091 is a deficient number, since it is larger than the sum of its proper divisors (1).

555055005091 is an equidigital number, since it uses as much as digits as its factorization.

555055005091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140625, while the sum is 40.

The spelling of 555055005091 in words is "five hundred fifty-five billion, fifty-five million, five thousand, ninety-one".