520551224 has 64 divisors (see below), whose sum is σ = 1029283200. Its totient is φ = 246564864.

The previous prime is 520551221. The next prime is 520551233. The reversal of 520551224 is 422155025.

It is a junction number, because it is equal to n+sod(n) for n = 520551193 and 520551202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520551221) 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 15 ways as a sum of consecutive naturals, for example, 2642294 + ... + 2642490.

It is an arithmetic number, because the mean of its divisors is an integer number (16082550).

Almost surely, 2^520551224 is an apocalyptic number.

It is an amenable number.

520551224 is a deficient number, since it is larger than the sum of its proper divisors (508731976).

520551224 is a wasteful number, since it uses less digits than its factorization.

520551224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 520551224 is about 22815.5916863885. The cubic root of 520551224 is about 804.4291950335.

The spelling of 520551224 in words is "five hundred twenty million, five hundred fifty-one thousand, two hundred twenty-four".