520541330 has 32 divisors (see below), whose sum is σ = 961895088. Its totient is φ = 202700800.

The previous prime is 520541327. The next prime is 520541341. The reversal of 520541330 is 33145025.

It can be written as a sum of positive squares in 8 ways, for example, as 254753521 + 265787809 = 15961^2 + 16303^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 520541296 and 520541305.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242060 + ... + 244200.

Almost surely, 2^520541330 is an apocalyptic number.

520541330 is a deficient number, since it is larger than the sum of its proper divisors (441353758).

520541330 is a wasteful number, since it uses less digits than its factorization.

520541330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2782.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 520541330 is about 22815.3748599492. The cubic root of 520541330 is about 804.4240984663.

Adding to 520541330 its reverse (33145025), we get a palindrome (553686355).

The spelling of 520541330 in words is "five hundred twenty million, five hundred forty-one thousand, three hundred thirty".