516340561 has 16 divisors (see below), whose sum is σ = 597484800. Its totient is φ = 441277200.

The previous prime is 516340553. The next prime is 516340579. The reversal of 516340561 is 165043615.

It is a cyclic number.

It is not a de Polignac number, because 516340561 - 2³ = 516340553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (516344561) 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 in 15 ways as a sum of consecutive naturals, for example, 17950 + ... + 36808.

It is an arithmetic number, because the mean of its divisors is an integer number (37342800).

Almost surely, 2^516340561 is an apocalyptic number.

It is an amenable number.

516340561 is a deficient number, since it is larger than the sum of its proper divisors (81144239).

516340561 is a wasteful number, since it uses less digits than its factorization.

516340561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19020.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 516340561 is about 22723.1283277633. The cubic root of 516340561 is about 802.2543502682.

The spelling of 516340561 in words is "five hundred sixteen million, three hundred forty thousand, five hundred sixty-one".