522432520 has 16 divisors (see below), whose sum is σ = 1175473260. Its totient is φ = 208972992.

The previous prime is 522432517. The next prime is 522432527. The reversal of 522432520 is 25234225.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 521939716 + 492804 = 22846^2 + 702^2 .

It is not an unprimeable number, because it can be changed into a prime (522432527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6530367 + ... + 6530446.

Almost surely, 2^522432520 is an apocalyptic number.

It is an amenable number.

522432520 is an abundant number, since it is smaller than the sum of its proper divisors (653040740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

522432520 is a wasteful number, since it uses less digits than its factorization.

522432520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13060824 (or 13060820 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 522432520 is about 22856.7828007355. The cubic root of 522432520 is about 805.3971112731.

Adding to 522432520 its reverse (25234225), we get a palindrome (547666745).

The spelling of 522432520 in words is "five hundred twenty-two million, four hundred thirty-two thousand, five hundred twenty".