517252407 has 8 divisors (see below), whose sum is σ = 788194176. Its totient is φ = 295572792.

The previous prime is 517252399. The next prime is 517252429. The reversal of 517252407 is 704252715.

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

It is not a de Polignac number, because 517252407 - 2³ = 517252399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517252487) 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 7 ways as a sum of consecutive naturals, for example, 12315513 + ... + 12315554.

It is an arithmetic number, because the mean of its divisors is an integer number (98524272).

Almost surely, 2^517252407 is an apocalyptic number.

517252407 is a deficient number, since it is larger than the sum of its proper divisors (270941769).

517252407 is a wasteful number, since it uses less digits than its factorization.

517252407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24631077.

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 517252407 is about 22743.1837481035. The cubic root of 517252407 is about 802.7263270177.

The spelling of 517252407 in words is "five hundred seventeen million, two hundred fifty-two thousand, four hundred seven".