555056055997 has 2 divisors, whose sum is σ = 555056055998. Its totient is φ = 555056055996.

The previous prime is 555056055979. The next prime is 555056056001. The reversal of 555056055997 is 799550650555.

It is a happy number.

Together with previous prime (555056055979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 337089392836 + 217966663161 = 580594^2 + 466869^2 .

It is a cyclic number.

It is not a de Polignac number, because 555056055997 - 2¹⁵ = 555056023229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (555056055937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277528027998 + 277528027999.

It is an arithmetic number, because the mean of its divisors is an integer number (277528027999).

Almost surely, 2^555056055997 is an apocalyptic number.

It is an amenable number.

555056055997 is a deficient number, since it is larger than the sum of its proper divisors (1).

555056055997 is an equidigital number, since it uses as much as digits as its factorization.

555056055997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53156250, while the sum is 61.

The spelling of 555056055997 in words is "five hundred fifty-five billion, fifty-six million, fifty-five thousand, nine hundred ninety-seven".