516082489 has 4 divisors (see below), whose sum is σ = 555781156. Its totient is φ = 476383824.

The previous prime is 516082477. The next prime is 516082493. The reversal of 516082489 is 984280615.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 984280615 = 5 ⋅196856123.

It can be written as a sum of positive squares in 2 ways, for example, as 94478400 + 421604089 = 9720^2 + 20533^2 .

It is a cyclic number.

It is not a de Polignac number, because 516082489 - 2⁷ = 516082361 is a prime.

It is a super-2 number, since 2×516082489² = 532682270904870242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516082439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19849314 + ... + 19849339.

It is an arithmetic number, because the mean of its divisors is an integer number (138945289).

Almost surely, 2^516082489 is an apocalyptic number.

It is an amenable number.

516082489 is a deficient number, since it is larger than the sum of its proper divisors (39698667).

516082489 is a wasteful number, since it uses less digits than its factorization.

516082489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39698666.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 516082489 is about 22717.4489985121. The cubic root of 516082489 is about 802.1206698362.

The spelling of 516082489 in words is "five hundred sixteen million, eighty-two thousand, four hundred eighty-nine".