520565026 has 16 divisors (see below), whose sum is σ = 818403264. Its totient is φ = 247864144.

The previous prime is 520564991. The next prime is 520565029. The reversal of 520565026 is 620565025.

It is not an unprimeable number, because it can be changed into a prime (520565029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14485 + ... + 35368.

It is an arithmetic number, because the mean of its divisors is an integer number (51150204).

Almost surely, 2^520565026 is an apocalyptic number.

520565026 is a deficient number, since it is larger than the sum of its proper divisors (297838238).

520565026 is a wasteful number, since it uses less digits than its factorization.

520565026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50105.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 520565026 is about 22815.8941529803. The cubic root of 520565026 is about 804.4363045699.

Subtracting 520565026 from its reverse (620565025), we obtain a palindrome (99999999).

The spelling of 520565026 in words is "five hundred twenty million, five hundred sixty-five thousand, twenty-six".