520503677 has 4 divisors (see below), whose sum is σ = 520600860. Its totient is φ = 520406496.

The previous prime is 520503661. The next prime is 520503701. The reversal of 520503677 is 776305025.

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

It can be written as a sum of positive squares in 2 ways, for example, as 506880196 + 13623481 = 22514^2 + 3691^2 .

It is a cyclic number.

It is not a de Polignac number, because 520503677 - 2⁴ = 520503661 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 (520503617) 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, 40058 + ... + 51435.

It is an arithmetic number, because the mean of its divisors is an integer number (130150215).

Almost surely, 2^520503677 is an apocalyptic number.

It is an amenable number.

520503677 is a deficient number, since it is larger than the sum of its proper divisors (97183).

520503677 is an equidigital number, since it uses as much as digits as its factorization.

520503677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97182.

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 520503677 is about 22814.5496777824. The cubic root of 520503677 is about 804.4047021769.

The spelling of 520503677 in words is "five hundred twenty million, five hundred three thousand, six hundred seventy-seven".