511249273 has 2 divisors, whose sum is σ = 511249274. Its totient is φ = 511249272.

The previous prime is 511249253. The next prime is 511249351. The reversal of 511249273 is 372942115.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 364160889 + 147088384 = 19083^2 + 12128^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-511249273 is a prime.

It is a super-2 number, since 2×511249273² = 522751638286057058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (511249223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255624636 + 255624637.

It is an arithmetic number, because the mean of its divisors is an integer number (255624637).

Almost surely, 2^511249273 is an apocalyptic number.

It is an amenable number.

511249273 is a deficient number, since it is larger than the sum of its proper divisors (1).

511249273 is an equidigital number, since it uses as much as digits as its factorization.

511249273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 34.

The square root of 511249273 is about 22610.8220328231. The cubic root of 511249273 is about 799.6088050935.

The spelling of 511249273 in words is "five hundred eleven million, two hundred forty-nine thousand, two hundred seventy-three".