516297761 has 6 divisors (see below), whose sum is σ = 600591330. Its totient is φ = 442540896.

The previous prime is 516297709. The next prime is 516297763. The reversal of 516297761 is 167792615.

It can be written as a sum of positive squares in only one way, i.e., 436016161 + 80281600 = 20881^2 + 8960^2 .

It is a de Polignac number, because none of the positive numbers 2^k-516297761 is a prime.

It is a super-2 number, since 2×516297761² = 533126756027226242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516297763) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5268296 + ... + 5268393.

It is an arithmetic number, because the mean of its divisors is an integer number (100098555).

Almost surely, 2^516297761 is an apocalyptic number.

It is an amenable number.

516297761 is a deficient number, since it is larger than the sum of its proper divisors (84293569).

516297761 is a wasteful number, since it uses less digits than its factorization.

516297761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10536703 (or 10536696 counting only the distinct ones).

The product of its digits is 158760, while the sum is 44.

The square root of 516297761 is about 22722.1865365110. The cubic root of 516297761 is about 802.2321830930.

The spelling of 516297761 in words is "five hundred sixteen million, two hundred ninety-seven thousand, seven hundred sixty-one".