520676423 has 4 divisors (see below), whose sum is σ = 521207088. Its totient is φ = 520145760.

The previous prime is 520676413. The next prime is 520676447. The reversal of 520676423 is 324676025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 520676423 - 2²⁶ = 453567559 is a prime.

It is a super-2 number, since 2×520676423² = 542207874936149858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520676413) 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, 263858 + ... + 265823.

It is an arithmetic number, because the mean of its divisors is an integer number (130301772).

Almost surely, 2^520676423 is an apocalyptic number.

520676423 is a deficient number, since it is larger than the sum of its proper divisors (530665).

520676423 is an equidigital number, since it uses as much as digits as its factorization.

520676423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530664.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 520676423 is about 22818.3352372604. The cubic root of 520676423 is about 804.4936815835.

The spelling of 520676423 in words is "five hundred twenty million, six hundred seventy-six thousand, four hundred twenty-three".