555066601 has 2 divisors, whose sum is σ = 555066602. Its totient is φ = 555066600.

The previous prime is 555066599. The next prime is 555066667. The reversal of 555066601 is 106660555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 430521001 + 124545600 = 20749^2 + 11160^2 .

It is a cyclic number.

It is not a de Polignac number, because 555066601 - 2¹ = 555066599 is a prime.

Together with 555066599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (555060601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277533300 + 277533301.

It is an arithmetic number, because the mean of its divisors is an integer number (277533301).

Almost surely, 2^555066601 is an apocalyptic number.

It is an amenable number.

555066601 is a deficient number, since it is larger than the sum of its proper divisors (1).

555066601 is an equidigital number, since it uses as much as digits as its factorization.

555066601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 555066601 is about 23559.8514638781. The cubic root of 555066601 is about 821.8294475295.

The spelling of 555066601 in words is "five hundred fifty-five million, sixty-six thousand, six hundred one".