520507207 has 12 divisors (see below), whose sum is σ = 603196056. Its totient is φ = 445351040.

The previous prime is 520507201. The next prime is 520507219. The reversal of 520507207 is 702705025.

It is not a de Polignac number, because 520507207 - 2⁷ = 520507079 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 (520507201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78688 + ... + 85045.

It is an arithmetic number, because the mean of its divisors is an integer number (50266338).

Almost surely, 2^520507207 is an apocalyptic number.

520507207 is a deficient number, since it is larger than the sum of its proper divisors (82688849).

520507207 is a wasteful number, since it uses less digits than its factorization.

520507207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163778 (or 163761 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 520507207 is about 22814.6270405633. The cubic root of 520507207 is about 804.4065206348.

The spelling of 520507207 in words is "five hundred twenty million, five hundred seven thousand, two hundred seven".