555399001 has 2 divisors, whose sum is σ = 555399002. Its totient is φ = 555399000.

The previous prime is 555398999. The next prime is 555399041. The reversal of 555399001 is 100993555.

555399001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 497334601 + 58064400 = 22301^2 + 7620^2 .

It is a cyclic number.

It is not a de Polignac number, because 555399001 - 2¹ = 555398999 is a prime.

Together with 555398999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (555399041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277699500 + 277699501.

It is an arithmetic number, because the mean of its divisors is an integer number (277699501).

Almost surely, 2^555399001 is an apocalyptic number.

It is an amenable number.

555399001 is a deficient number, since it is larger than the sum of its proper divisors (1).

555399001 is an equidigital number, since it uses as much as digits as its factorization.

555399001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30375, while the sum is 37.

The square root of 555399001 is about 23566.9047819182. The cubic root of 555399001 is about 821.9934648419.

The spelling of 555399001 in words is "five hundred fifty-five million, three hundred ninety-nine thousand, one".