520005707 has 16 divisors (see below), whose sum is σ = 600112800. Its totient is φ = 446310912.

The previous prime is 520005701. The next prime is 520005719. The reversal of 520005707 is 707500025.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520005707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520005701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4169 + ... + 32517.

It is an arithmetic number, because the mean of its divisors is an integer number (37507050).

Almost surely, 2^520005707 is an apocalyptic number.

520005707 is a deficient number, since it is larger than the sum of its proper divisors (80107093).

520005707 is a wasteful number, since it uses less digits than its factorization.

520005707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28462.

The product of its (nonzero) digits is 2450, while the sum is 26.

The square root of 520005707 is about 22803.6336358923. The cubic root of 520005707 is about 804.1480935381.

The spelling of 520005707 in words is "five hundred twenty million, five thousand, seven hundred seven".