273556013 has 2 divisors, whose sum is σ = 273556014. Its totient is φ = 273556012.

The previous prime is 273556001. The next prime is 273556051. The reversal of 273556013 is 310655372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212372329 + 61183684 = 14573^2 + 7822^2 .

It is a cyclic number.

It is not a de Polignac number, because 273556013 - 2²² = 269361709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (273556313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136778006 + 136778007.

It is an arithmetic number, because the mean of its divisors is an integer number (136778007).

Almost surely, 2^273556013 is an apocalyptic number.

It is an amenable number.

273556013 is a deficient number, since it is larger than the sum of its proper divisors (1).

273556013 is an equidigital number, since it uses as much as digits as its factorization.

273556013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 273556013 is about 16539.5288022362. The cubic root of 273556013 is about 649.1555210810.

The spelling of 273556013 in words is "two hundred seventy-three million, five hundred fifty-six thousand, thirteen".