273555001 has 2 divisors, whose sum is σ = 273555002. Its totient is φ = 273555000.

The previous prime is 273554987. The next prime is 273555013. The reversal of 273555001 is 100555372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 254370601 + 19184400 = 15949^2 + 4380^2 .

It is a cyclic number.

It is not a de Polignac number, because 273555001 - 2⁷ = 273554873 is a prime.

It is a super-2 number, since 2×273555001² = 149664677144220002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (273555071) 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, 136777500 + 136777501.

It is an arithmetic number, because the mean of its divisors is an integer number (136777501).

Almost surely, 2^273555001 is an apocalyptic number.

It is an amenable number.

273555001 is a deficient number, since it is larger than the sum of its proper divisors (1).

273555001 is an equidigital number, since it uses as much as digits as its factorization.

273555001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 273555001 is about 16539.4982088333. The cubic root of 273555001 is about 649.1547205793.

The spelling of 273555001 in words is "two hundred seventy-three million, five hundred fifty-five thousand, one".