506520423 has 24 divisors (see below), whose sum is σ = 775783008. Its totient is φ = 317363712.

The previous prime is 506520419. The next prime is 506520431. The reversal of 506520423 is 324025605.

506520423 is a `hidden beast` number, since 5 + 0 + 652 + 0 + 4 + 2 + 3 = 666.

It is not a de Polignac number, because 506520423 - 2² = 506520419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506520433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129190 + ... + 133052.

It is an arithmetic number, because the mean of its divisors is an integer number (32324292).

Almost surely, 2^506520423 is an apocalyptic number.

506520423 is a deficient number, since it is larger than the sum of its proper divisors (269262585).

506520423 is a wasteful number, since it uses less digits than its factorization.

506520423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4743 (or 4740 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 506520423 is about 22506.0085977056. The cubic root of 506520423 is about 797.1358114133.

The spelling of 506520423 in words is "five hundred six million, five hundred twenty thousand, four hundred twenty-three".