555005005109 has 2 divisors, whose sum is σ = 555005005110. Its totient is φ = 555005005108.

The previous prime is 555005005031. The next prime is 555005005171. The reversal of 555005005109 is 901500500555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 535974802609 + 19030202500 = 732103^2 + 137950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-555005005109 is a prime.

It is a super-2 number, since 2×555005005109² (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 (555005005189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277502502554 + 277502502555.

It is an arithmetic number, because the mean of its divisors is an integer number (277502502555).

Almost surely, 2^555005005109 is an apocalyptic number.

It is an amenable number.

555005005109 is a deficient number, since it is larger than the sum of its proper divisors (1).

555005005109 is an equidigital number, since it uses as much as digits as its factorization.

555005005109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28125, while the sum is 35.

The spelling of 555005005109 in words is "five hundred fifty-five billion, five million, five thousand, one hundred nine".