517252423 has 4 divisors (see below), whose sum is σ = 517309200. Its totient is φ = 517195648.

The previous prime is 517252399. The next prime is 517252429. The reversal of 517252423 is 324252715.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-517252423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517252429) 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, 11290 + ... + 34087.

It is an arithmetic number, because the mean of its divisors is an integer number (129327300).

Almost surely, 2^517252423 is an apocalyptic number.

517252423 is a deficient number, since it is larger than the sum of its proper divisors (56777).

517252423 is a wasteful number, since it uses less digits than its factorization.

517252423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56776.

The product of its digits is 16800, while the sum is 31.

The square root of 517252423 is about 22743.1840998573. The cubic root of 517252423 is about 802.7263352945.

The spelling of 517252423 in words is "five hundred seventeen million, two hundred fifty-two thousand, four hundred twenty-three".