509031073 has 2 divisors, whose sum is σ = 509031074. Its totient is φ = 509031072.

The previous prime is 509031053. The next prime is 509031097. The reversal of 509031073 is 370130905.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 507510784 + 1520289 = 22528^2 + 1233^2 .

It is a cyclic number.

It is not a de Polignac number, because 509031073 - 2⁵ = 509031041 is a prime.

It is a super-2 number, since 2×509031073² = 518225266559062658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (509031013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254515536 + 254515537.

It is an arithmetic number, because the mean of its divisors is an integer number (254515537).

Almost surely, 2^509031073 is an apocalyptic number.

It is an amenable number.

509031073 is a deficient number, since it is larger than the sum of its proper divisors (1).

509031073 is an equidigital number, since it uses as much as digits as its factorization.

509031073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2835, while the sum is 28.

The square root of 509031073 is about 22561.7169781025. The cubic root of 509031073 is about 798.4506853211.

Adding to 509031073 its reverse (370130905), we get a palindrome (879161978).

It can be divided in two parts, 5090 and 31073, that added together give a palindrome (36163).

The spelling of 509031073 in words is "five hundred nine million, thirty-one thousand, seventy-three".