520572005 has 4 divisors (see below), whose sum is σ = 624686412. Its totient is φ = 416457600.

The previous prime is 520571993. The next prime is 520572023. The reversal of 520572005 is 500275025.

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 56040196 + 464531809 = 7486^2 + 21553^2 .

It is not a de Polignac number, because 520572005 - 2⁶ = 520571941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52057196 + ... + 52057205.

It is an arithmetic number, because the mean of its divisors is an integer number (156171603).

Almost surely, 2^520572005 is an apocalyptic number.

It is an amenable number.

520572005 is a deficient number, since it is larger than the sum of its proper divisors (104114407).

520572005 is a wasteful number, since it uses less digits than its factorization.

520572005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104114406.

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 520572005 is about 22816.0470940959. The cubic root of 520572005 is about 804.4398994688.

The spelling of 520572005 in words is "five hundred twenty million, five hundred seventy-two thousand, five".