520080423 has 4 divisors (see below), whose sum is σ = 693440568. Its totient is φ = 346720280.

The previous prime is 520080419. The next prime is 520080437. The reversal of 520080423 is 324080025.

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 520080423 - 2² = 520080419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 520080393 and 520080402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520080443) 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, 86680068 + ... + 86680073.

It is an arithmetic number, because the mean of its divisors is an integer number (173360142).

Almost surely, 2^520080423 is an apocalyptic number.

520080423 is a deficient number, since it is larger than the sum of its proper divisors (173360145).

520080423 is a wasteful number, since it uses less digits than its factorization.

520080423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173360144.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 520080423 is about 22805.2718247339. The cubic root of 520080423 is about 804.1866058408.

The spelling of 520080423 in words is "five hundred twenty million, eighty thousand, four hundred twenty-three".