555550555697 has 2 divisors, whose sum is σ = 555550555698. Its totient is φ = 555550555696.

The previous prime is 555550555643. The next prime is 555550555711. The reversal of 555550555697 is 796555055555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 491703878656 + 63846677041 = 701216^2 + 252679^2 .

It is a cyclic number.

It is not a de Polignac number, because 555550555697 - 2¹⁰ = 555550554673 is a prime.

It is not a weakly prime, because it can be changed into another prime (555550555607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277775277848 + 277775277849.

It is an arithmetic number, because the mean of its divisors is an integer number (277775277849).

Almost surely, 2^555550555697 is an apocalyptic number.

It is an amenable number.

555550555697 is a deficient number, since it is larger than the sum of its proper divisors (1).

555550555697 is an equidigital number, since it uses as much as digits as its factorization.

555550555697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 147656250, while the sum is 62.

The spelling of 555550555697 in words is "five hundred fifty-five billion, five hundred fifty million, five hundred fifty-five thousand, six hundred ninety-seven".