520077 has 4 divisors (see below), whose sum is σ = 693440. Its totient is φ = 346716.

The previous prime is 520073. The next prime is 520103. The reversal of 520077 is 770025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 520077 - 2² = 520073 is a prime.

It is a D-number.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520073) 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, 86677 + ... + 86682.

It is an arithmetic number, because the mean of its divisors is an integer number (173360).

2⁵²⁰⁰⁷⁷ is an apocalyptic number.

It is an amenable number.

520077 is a deficient number, since it is larger than the sum of its proper divisors (173363).

520077 is a wasteful number, since it uses less digits than its factorization.

520077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173362.

The product of its (nonzero) digits is 490, while the sum is 21.

The square root of 520077 is about 721.1636430104. The cubic root of 520077 is about 80.4184841539.

The spelling of 520077 in words is "five hundred twenty thousand, seventy-seven".