517425738 has 8 divisors (see below), whose sum is σ = 1034851488. Its totient is φ = 172475244.

The previous prime is 517425709. The next prime is 517425739. The reversal of 517425738 is 837524715.

It is a sphenic number, since it is the product of 3 distinct primes.

517425738 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 517425738.

It is not an unprimeable number, because it can be changed into a prime (517425739) 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, 43118806 + ... + 43118817.

It is an arithmetic number, because the mean of its divisors is an integer number (129356436).

Almost surely, 2^517425738 is an apocalyptic number.

517425738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

517425738 is a wasteful number, since it uses less digits than its factorization.

517425738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86237628.

The product of its digits is 235200, while the sum is 42.

The square root of 517425738 is about 22746.9940431697. The cubic root of 517425738 is about 802.8159813891.

The spelling of 517425738 in words is "five hundred seventeen million, four hundred twenty-five thousand, seven hundred thirty-eight".