520033331 has 4 divisors (see below), whose sum is σ = 520092552. Its totient is φ = 519974112.

The previous prime is 520033309. The next prime is 520033337. The reversal of 520033331 is 133330025.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 520033331 - 2¹⁰ = 520032307 is a prime.

It is a super-2 number, since 2×520033331² = 540869330701911122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520033337) 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, 13526 + ... + 34971.

It is an arithmetic number, because the mean of its divisors is an integer number (130023138).

Almost surely, 2^520033331 is an apocalyptic number.

520033331 is a deficient number, since it is larger than the sum of its proper divisors (59221).

520033331 is a wasteful number, since it uses less digits than its factorization.

520033331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59220.

The product of its (nonzero) digits is 810, while the sum is 20.

The square root of 520033331 is about 22804.2393207930. The cubic root of 520033331 is about 804.1623327367.

Adding to 520033331 its reverse (133330025), we get a palindrome (653363356).

The spelling of 520033331 in words is "five hundred twenty million, thirty-three thousand, three hundred thirty-one".