601555001 has 2 divisors, whose sum is σ = 601555002. Its totient is φ = 601555000.

The previous prime is 601554997. The next prime is 601555007. The reversal of 601555001 is 100555106.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 328479376 + 273075625 = 18124^2 + 16525^2 .

It is a cyclic number.

It is not a de Polignac number, because 601555001 - 2² = 601554997 is a prime.

It is a super-2 number, since 2×601555001² = 723736838456220002, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (601555007) 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, 300777500 + 300777501.

It is an arithmetic number, because the mean of its divisors is an integer number (300777501).

Almost surely, 2^601555001 is an apocalyptic number.

It is an amenable number.

601555001 is a deficient number, since it is larger than the sum of its proper divisors (1).

601555001 is an equidigital number, since it uses as much as digits as its factorization.

601555001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 601555001 is about 24526.6182136878. The cubic root of 601555001 is about 844.1606693252.

It can be divided in two parts, 60155 and 5001, that added together give a palindrome (65156).

The spelling of 601555001 in words is "six hundred one million, five hundred fifty-five thousand, one".