520246280961 has 45 divisors (see below), whose sum is σ = 827024620305. Its totient is φ = 315142094520.

The previous prime is 520246280947. The next prime is 520246280963. The reversal of 520246280961 is 169082642025.

The square root of 520246280961 is 721281.

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

520246280961 is a `hidden beast` number, since 5 + 20 + 2 + 462 + 80 + 96 + 1 = 666.

It is not a de Polignac number, because 520246280961 - 2⁷ = 520246280833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520246280963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 261824010 + ... + 261825996.

Almost surely, 2^520246280961 is an apocalyptic number.

520246280961 is the 721281-st square number.

520246280961 is the 360641-st centered octagonal number.

It is an amenable number.

520246280961 is a deficient number, since it is larger than the sum of its proper divisors (306778339344).

520246280961 is an frugal number, since it uses more digits than its factorization.

520246280961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4024 (or 2001 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 520246280961 in words is "five hundred twenty billion, two hundred forty-six million, two hundred eighty thousand, nine hundred sixty-one".