520227663 has 4 divisors (see below), whose sum is σ = 693636888. Its totient is φ = 346818440.

The previous prime is 520227611. The next prime is 520227683. The reversal of 520227663 is 366722025.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 520227663 - 2⁶ = 520227599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520227683) 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, 86704608 + ... + 86704613.

It is an arithmetic number, because the mean of its divisors is an integer number (173409222).

Almost surely, 2^520227663 is an apocalyptic number.

520227663 is a deficient number, since it is larger than the sum of its proper divisors (173409225).

520227663 is a wasteful number, since it uses less digits than its factorization.

520227663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173409224.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 520227663 is about 22808.4997972247. The cubic root of 520227663 is about 804.2624897862.

Adding to 520227663 its reverse (366722025), we get a palindrome (886949688).

It can be divided in two parts, 52022 and 7663, that added together give a triangular number (59685 = T₃₄₅).

The spelling of 520227663 in words is "five hundred twenty million, two hundred twenty-seven thousand, six hundred sixty-three".