555601056061 has 2 divisors, whose sum is σ = 555601056062. Its totient is φ = 555601056060.

The previous prime is 555601056011. The next prime is 555601056079. The reversal of 555601056061 is 160650106555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 338357439225 + 217243616836 = 581685^2 + 466094^2 .

It is a cyclic number.

It is not a de Polignac number, because 555601056061 - 2¹⁵ = 555601023293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (555601056001) 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, 277800528030 + 277800528031.

It is an arithmetic number, because the mean of its divisors is an integer number (277800528031).

Almost surely, 2^555601056061 is an apocalyptic number.

It is an amenable number.

555601056061 is a deficient number, since it is larger than the sum of its proper divisors (1).

555601056061 is an equidigital number, since it uses as much as digits as its factorization.

555601056061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 555601056061 in words is "five hundred fifty-five billion, six hundred one million, fifty-six thousand, sixty-one".