551155273 has 2 divisors, whose sum is σ = 551155274. Its totient is φ = 551155272.

The previous prime is 551155243. The next prime is 551155289. The reversal of 551155273 is 372551155.

551155273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 315133504 + 236021769 = 17752^2 + 15363^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551155273 is a prime.

It is not a weakly prime, because it can be changed into another prime (551155223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275577636 + 275577637.

It is an arithmetic number, because the mean of its divisors is an integer number (275577637).

Almost surely, 2^551155273 is an apocalyptic number.

It is an amenable number.

551155273 is a deficient number, since it is larger than the sum of its proper divisors (1).

551155273 is an equidigital number, since it uses as much as digits as its factorization.

551155273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26250, while the sum is 34.

The square root of 551155273 is about 23476.6963817314. The cubic root of 551155273 is about 819.8945298613.

The spelling of 551155273 in words is "five hundred fifty-one million, one hundred fifty-five thousand, two hundred seventy-three".