555500120551 has 2 divisors, whose sum is σ = 555500120552. Its totient is φ = 555500120550.

The previous prime is 555500120449. The next prime is 555500120557. The reversal of 555500120551 is 155021005555.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-555500120551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (555500120557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277750060275 + 277750060276.

It is an arithmetic number, because the mean of its divisors is an integer number (277750060276).

Almost surely, 2^555500120551 is an apocalyptic number.

555500120551 is a deficient number, since it is larger than the sum of its proper divisors (1).

555500120551 is an equidigital number, since it uses as much as digits as its factorization.

555500120551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31250, while the sum is 34.

The spelling of 555500120551 in words is "five hundred fifty-five billion, five hundred million, one hundred twenty thousand, five hundred fifty-one".