517220006 has 4 divisors (see below), whose sum is σ = 775830012. Its totient is φ = 258610002.

The previous prime is 517219991. The next prime is 517220009. The reversal of 517220006 is 600022715.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517220009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129305000 + ... + 129305003.

It is an arithmetic number, because the mean of its divisors is an integer number (193957503).

Almost surely, 2^517220006 is an apocalyptic number.

517220006 is a deficient number, since it is larger than the sum of its proper divisors (258610006).

517220006 is a wasteful number, since it uses less digits than its factorization.

517220006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258610005.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 517220006 is about 22742.4714136349. The cubic root of 517220006 is about 802.7095655820.

The spelling of 517220006 in words is "five hundred seventeen million, two hundred twenty thousand, six".