555784860601 has 2 divisors, whose sum is σ = 555784860602. Its totient is φ = 555784860600.

The previous prime is 555784860599. The next prime is 555784860629. The reversal of 555784860601 is 106068487555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 425390928400 + 130393932201 = 652220^2 + 361101^2 .

It is a cyclic number.

It is not a de Polignac number, because 555784860601 - 2¹ = 555784860599 is a prime.

It is a super-2 number, since 2×555784860601² (a number of 24 digits) contains 22 as substring.

Together with 555784860599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (555784860641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277892430300 + 277892430301.

It is an arithmetic number, because the mean of its divisors is an integer number (277892430301).

Almost surely, 2^555784860601 is an apocalyptic number.

It is an amenable number.

555784860601 is a deficient number, since it is larger than the sum of its proper divisors (1).

555784860601 is an equidigital number, since it uses as much as digits as its factorization.

555784860601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064000, while the sum is 55.

The spelling of 555784860601 in words is "five hundred fifty-five billion, seven hundred eighty-four million, eight hundred sixty thousand, six hundred one".