520065044 has 24 divisors (see below), whose sum is σ = 952361928. Its totient is φ = 248227200.

The previous prime is 520065041. The next prime is 520065053. The reversal of 520065044 is 440560025.

It can be written as a sum of positive squares in 4 ways, for example, as 124055044 + 396010000 = 11138^2 + 19900^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520065041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25307 + ... + 40994.

It is an arithmetic number, because the mean of its divisors is an integer number (39681747).

Almost surely, 2^520065044 is an apocalyptic number.

It is an amenable number.

520065044 is a deficient number, since it is larger than the sum of its proper divisors (432296884).

520065044 is a wasteful number, since it uses less digits than its factorization.

520065044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66395 (or 66393 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 520065044 is about 22804.9346414323. The cubic root of 520065044 is about 804.1786790489.

The spelling of 520065044 in words is "five hundred twenty million, sixty-five thousand, forty-four".