517048631 has 8 divisors (see below), whose sum is σ = 565655184. Its totient is φ = 468709120.

The previous prime is 517048621. The next prime is 517048633. The reversal of 517048631 is 136840715.

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

It is a de Polignac number, because none of the positive numbers 2^k-517048631 is a prime.

It is a super-2 number, since 2×517048631² = 534678573637948322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 517048591 and 517048600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517048633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62696 + ... + 70461.

It is an arithmetic number, because the mean of its divisors is an integer number (70706898).

Almost surely, 2^517048631 is an apocalyptic number.

517048631 is a deficient number, since it is larger than the sum of its proper divisors (48606553).

517048631 is a wasteful number, since it uses less digits than its factorization.

517048631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133521.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 517048631 is about 22738.7033711247. The cubic root of 517048631 is about 802.6208995428.

The spelling of 517048631 in words is "five hundred seventeen million, forty-eight thousand, six hundred thirty-one".