520533801 has 12 divisors (see below), whose sum is σ = 764208900. Its totient is φ = 341333280.

The previous prime is 520533799. The next prime is 520533821. The reversal of 520533801 is 108335025.

520533801 is a `hidden beast` number, since 52 + 0 + 533 + 80 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5198400 + 515335401 = 2280^2 + 22701^2 .

It is not a de Polignac number, because 520533801 - 2¹ = 520533799 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (520533821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 473526 + ... + 474623.

It is an arithmetic number, because the mean of its divisors is an integer number (63684075).

Almost surely, 2^520533801 is an apocalyptic number.

It is an amenable number.

520533801 is a deficient number, since it is larger than the sum of its proper divisors (243675099).

520533801 is a wasteful number, since it uses less digits than its factorization.

520533801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948216 (or 948213 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 520533801 is about 22815.2098609677. The cubic root of 520533801 is about 804.4202201074.

Adding to 520533801 its reverse (108335025), we get a palindrome (628868826).

The spelling of 520533801 in words is "five hundred twenty million, five hundred thirty-three thousand, eight hundred one".