555555505051 has 2 divisors, whose sum is σ = 555555505052. Its totient is φ = 555555505050.

The previous prime is 555555505039. The next prime is 555555505079. The reversal of 555555505051 is 150505555555.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-555555505051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 555555504992 and 555555505010.

It is not a weakly prime, because it can be changed into another prime (555555505651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277777752525 + 277777752526.

It is an arithmetic number, because the mean of its divisors is an integer number (277777752526).

Almost surely, 2^555555505051 is an apocalyptic number.

555555505051 is a deficient number, since it is larger than the sum of its proper divisors (1).

555555505051 is an equidigital number, since it uses as much as digits as its factorization.

555555505051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1953125, while the sum is 46.

The spelling of 555555505051 in words is "five hundred fifty-five billion, five hundred fifty-five million, five hundred five thousand, fifty-one".