516005601 has 4 divisors (see below), whose sum is σ = 688007472. Its totient is φ = 344003732.

The previous prime is 516005593. The next prime is 516005653. The reversal of 516005601 is 106500615.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 516005601 - 2³ = 516005593 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (516005701) 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, 86000931 + ... + 86000936.

It is an arithmetic number, because the mean of its divisors is an integer number (172001868).

Almost surely, 2^516005601 is an apocalyptic number.

It is an amenable number.

516005601 is a deficient number, since it is larger than the sum of its proper divisors (172001871).

516005601 is a wasteful number, since it uses less digits than its factorization.

516005601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172001870.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 516005601 is about 22715.7566680047. The cubic root of 516005601 is about 802.0808334932.

The spelling of 516005601 in words is "five hundred sixteen million, five thousand, six hundred one".