520450511 has 6 divisors (see below), whose sum is σ = 605422080. Its totient is φ = 446100396.

The previous prime is 520450481. The next prime is 520450523. The reversal of 520450511 is 115054025.

It is a happy number.

It is not a de Polignac number, because 520450511 - 2¹⁰ = 520449487 is a prime.

It is a super-2 number, since 2×520450511² = 541737468800322242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520450561) 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 5 ways as a sum of consecutive naturals, for example, 5310671 + ... + 5310768.

It is an arithmetic number, because the mean of its divisors is an integer number (100903680).

Almost surely, 2^520450511 is an apocalyptic number.

520450511 is a deficient number, since it is larger than the sum of its proper divisors (84971569).

520450511 is a wasteful number, since it uses less digits than its factorization.

520450511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10621453 (or 10621446 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 520450511 is about 22813.3844705252. The cubic root of 520450511 is about 804.3773130417.

The spelling of 520450511 in words is "five hundred twenty million, four hundred fifty thousand, five hundred eleven".