520522430 has 16 divisors (see below), whose sum is σ = 977677344. Its totient is φ = 199156320.

The previous prime is 520522427. The next prime is 520522447. The reversal of 520522430 is 34225025.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 520522396 and 520522405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1131341 + ... + 1131800.

It is an arithmetic number, because the mean of its divisors is an integer number (61104834).

Almost surely, 2^520522430 is an apocalyptic number.

520522430 is a deficient number, since it is larger than the sum of its proper divisors (457154914).

520522430 is a wasteful number, since it uses less digits than its factorization.

520522430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2263171.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 520522430 is about 22814.9606618114. The cubic root of 520522430 is about 804.4143625763.

Adding to 520522430 its reverse (34225025), we get a palindrome (554747455).

The spelling of 520522430 in words is "five hundred twenty million, five hundred twenty-two thousand, four hundred thirty".