516409273 has 4 divisors (see below), whose sum is σ = 517088628. Its totient is φ = 515729920.

The previous prime is 516409249. The next prime is 516409297. The reversal of 516409273 is 372904615.

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

It is an interprime number because it is at equal distance from previous prime (516409249) and next prime (516409297).

It can be written as a sum of positive squares in 2 ways, for example, as 60031504 + 456377769 = 7748^2 + 21363^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-516409273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516409573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338536 + ... + 340057.

It is an arithmetic number, because the mean of its divisors is an integer number (129272157).

Almost surely, 2^516409273 is an apocalyptic number.

It is an amenable number.

516409273 is a deficient number, since it is larger than the sum of its proper divisors (679355).

516409273 is an equidigital number, since it uses as much as digits as its factorization.

516409273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679354.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 516409273 is about 22724.6402171740. The cubic root of 516409273 is about 802.2899353452.

The spelling of 516409273 in words is "five hundred sixteen million, four hundred nine thousand, two hundred seventy-three".