520488659601 has 45 divisors (see below), whose sum is σ = 820790548281. Its totient is φ = 328651763256.

The previous prime is 520488659599. The next prime is 520488659617. The reversal of 520488659601 is 106956884025.

The square root of 520488659601 is 721449.

It is a perfect power (a square), and thus also a powerful number.

520488659601 is a `hidden beast` number, since 5 + 2 + 0 + 48 + 8 + 6 + 596 + 0 + 1 = 666.

It is not a de Polignac number, because 520488659601 - 2¹ = 520488659599 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (520488659401) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 123365670 + ... + 123369888.

Almost surely, 2^520488659601 is an apocalyptic number.

520488659601 is the 721449-th square number.

520488659601 is the 360725-th centered octagonal number.

It is an amenable number.

520488659601 is a deficient number, since it is larger than the sum of its proper divisors (300301888680).

520488659601 is an frugal number, since it uses more digits than its factorization.

520488659601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8488 (or 4241 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 520488659601 in words is "five hundred twenty billion, four hundred eighty-eight million, six hundred fifty-nine thousand, six hundred one".