273390055 has 4 divisors (see below), whose sum is σ = 328068072. Its totient is φ = 218712040.

The previous prime is 273390049. The next prime is 273390067. The reversal of 273390055 is 550093372.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 273390055 - 2¹⁷ = 273258983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 273390055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27339001 + ... + 27339010.

It is an arithmetic number, because the mean of its divisors is an integer number (82017018).

Almost surely, 2^273390055 is an apocalyptic number.

273390055 is a deficient number, since it is larger than the sum of its proper divisors (54678017).

273390055 is an equidigital number, since it uses as much as digits as its factorization.

273390055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54678016.

The product of its (nonzero) digits is 28350, while the sum is 34.

The square root of 273390055 is about 16534.5110299640. The cubic root of 273390055 is about 649.0242203111.

The spelling of 273390055 in words is "two hundred seventy-three million, three hundred ninety thousand, fifty-five".