520531007 has 8 divisors (see below), whose sum is σ = 557344800. Its totient is φ = 484405504.

The previous prime is 520531001. The next prime is 520531019. The reversal of 520531007 is 700135025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 520531007 - 2⁶ = 520530943 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 (520531001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170507 + ... + 173532.

It is an arithmetic number, because the mean of its divisors is an integer number (69668100).

Almost surely, 2^520531007 is an apocalyptic number.

520531007 is a deficient number, since it is larger than the sum of its proper divisors (36813793).

520531007 is a wasteful number, since it uses less digits than its factorization.

520531007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344145.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 520531007 is about 22815.1486298030. The cubic root of 520531007 is about 804.4187808451.

The spelling of 520531007 in words is "five hundred twenty million, five hundred thirty-one thousand, seven".