517612423 has 4 divisors (see below), whose sum is σ = 517673728. Its totient is φ = 517551120.

The previous prime is 517612411. The next prime is 517612427. The reversal of 517612423 is 324216715.

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, and also an emirpimes, since its reverse is a distinct semiprime: 324216715 = 5 ⋅64843343.

It is a cyclic number.

It is not a de Polignac number, because 517612423 - 2⁵ = 517612391 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 (517612427) 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, 15486 + ... + 35707.

It is an arithmetic number, because the mean of its divisors is an integer number (129418432).

Almost surely, 2^517612423 is an apocalyptic number.

517612423 is a deficient number, since it is larger than the sum of its proper divisors (61305).

517612423 is a wasteful number, since it uses less digits than its factorization.

517612423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61304.

The product of its digits is 10080, while the sum is 31.

The square root of 517612423 is about 22751.0971823339. The cubic root of 517612423 is about 802.9125206407.

The spelling of 517612423 in words is "five hundred seventeen million, six hundred twelve thousand, four hundred twenty-three".