520427803 has 16 divisors (see below), whose sum is σ = 631840000. Its totient is φ = 418714272.

The previous prime is 520427779. The next prime is 520427813. The reversal of 520427803 is 308724025.

It is a cyclic number.

It is not a de Polignac number, because 520427803 - 2⁵ = 520427771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520427813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3453 + ... + 32446.

It is an arithmetic number, because the mean of its divisors is an integer number (39490000).

Almost surely, 2^520427803 is an apocalyptic number.

520427803 is a deficient number, since it is larger than the sum of its proper divisors (111412197).

520427803 is a wasteful number, since it uses less digits than its factorization.

520427803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36034.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 520427803 is about 22812.8867748034. The cubic root of 520427803 is about 804.3656141608.

The spelling of 520427803 in words is "five hundred twenty million, four hundred twenty-seven thousand, eight hundred three".