520788067 has 4 divisors (see below), whose sum is σ = 521473176. Its totient is φ = 520102960.

The previous prime is 520788031. The next prime is 520788077. The reversal of 520788067 is 760887025.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520788067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520788077) 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, 341413 + ... + 342934.

It is an arithmetic number, because the mean of its divisors is an integer number (130368294).

Almost surely, 2^520788067 is an apocalyptic number.

520788067 is a deficient number, since it is larger than the sum of its proper divisors (685109).

520788067 is an equidigital number, since it uses as much as digits as its factorization.

520788067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685108.

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 520788067 is about 22820.7814721582. The cubic root of 520788067 is about 804.5511776084.

The spelling of 520788067 in words is "five hundred twenty million, seven hundred eighty-eight thousand, sixty-seven".