511273 has 4 divisors (see below), whose sum is σ = 584320. Its totient is φ = 438228.

The previous prime is 511261. The next prime is 511279. The reversal of 511273 is 372115.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 511273 - 2¹⁷ = 380201 is a prime.

It is a super-2 number, since 2×511273² = 522800161058, which contains 22 as substring.

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 511273.

It is not an unprimeable number, because it can be changed into a prime (511279) 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 in 3 ways as a sum of consecutive naturals, for example, 36513 + ... + 36526.

It is an arithmetic number, because the mean of its divisors is an integer number (146080).

2⁵¹¹²⁷³ is an apocalyptic number.

It is an amenable number.

511273 is a deficient number, since it is larger than the sum of its proper divisors (73047).

511273 is an equidigital number, since it uses as much as digits as its factorization.

511273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73046.

The product of its digits is 210, while the sum is 19.

The square root of 511273 is about 715.0335656457. The cubic root of 511273 is about 79.9621174809.

Adding to 511273 its reverse (372115), we get a palindrome (883388).

It can be divided in two parts, 511 and 273, that added together give a square (784 = 28²).

The spelling of 511273 in words is "five hundred eleven thousand, two hundred seventy-three".