520656230 has 64 divisors (see below), whose sum is σ = 989392320. Its totient is φ = 197074944.

The previous prime is 520656223. The next prime is 520656239. The reversal of 520656230 is 32656025.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 520656193 and 520656202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520656239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3194129 + ... + 3194291.

It is an arithmetic number, because the mean of its divisors is an integer number (15459255).

Almost surely, 2^520656230 is an apocalyptic number.

520656230 is a deficient number, since it is larger than the sum of its proper divisors (468736090).

520656230 is a wasteful number, since it uses less digits than its factorization.

520656230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 520656230 is about 22817.8927598497. The cubic root of 520656230 is about 804.4832814257.

The spelling of 520656230 in words is "five hundred twenty million, six hundred fifty-six thousand, two hundred thirty".