600055121 has 2 divisors, whose sum is σ = 600055122. Its totient is φ = 600055120.

The previous prime is 600055097. The next prime is 600055133. The reversal of 600055121 is 121550006.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 596580625 + 3474496 = 24425^2 + 1864^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-600055121 is a prime.

It is a super-2 number, since 2×600055121² = 720132296476649282, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 600055093 and 600055102.

It is not a weakly prime, because it can be changed into another prime (600055921) 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, 300027560 + 300027561.

It is an arithmetic number, because the mean of its divisors is an integer number (300027561).

Almost surely, 2^600055121 is an apocalyptic number.

It is an amenable number.

600055121 is a deficient number, since it is larger than the sum of its proper divisors (1).

600055121 is an equidigital number, since it uses as much as digits as its factorization.

600055121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 600055121 is about 24496.0225546924. The cubic root of 600055121 is about 843.4584927619.

The spelling of 600055121 in words is "six hundred million, fifty-five thousand, one hundred twenty-one".