520580061 has 16 divisors (see below), whose sum is σ = 773312320. Its totient is φ = 346116240.

The previous prime is 520580057. The next prime is 520580063. The reversal of 520580061 is 160085025.

520580061 is a `hidden beast` number, since 5 + 20 + 580 + 0 + 61 = 666.

It is not a de Polignac number, because 520580061 - 2² = 520580057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520580063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15775 + ... + 35916.

It is an arithmetic number, because the mean of its divisors is an integer number (48332020).

Almost surely, 2^520580061 is an apocalyptic number.

It is an amenable number.

520580061 is a deficient number, since it is larger than the sum of its proper divisors (252732259).

520580061 is a wasteful number, since it uses less digits than its factorization.

520580061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52073 (or 52067 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 520580061 is about 22816.2236358255. The cubic root of 520580061 is about 804.4440490929. Note that the first 3 decimals are identical.

The spelling of 520580061 in words is "five hundred twenty million, five hundred eighty thousand, sixty-one".