520563242461 has 8 divisors (see below), whose sum is σ = 522889518240. Its totient is φ = 518237257008.

The previous prime is 520563242453. The next prime is 520563242483. The reversal of 520563242461 is 164242365025.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 520563242461 - 2³ = 520563242453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520563246461) 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, 4040050 + ... + 4166908.

It is an arithmetic number, because the mean of its divisors is an integer number (65361189780).

Almost surely, 2^520563242461 is an apocalyptic number.

It is an amenable number.

520563242461 is a deficient number, since it is larger than the sum of its proper divisors (2326275779).

520563242461 is a wasteful number, since it uses less digits than its factorization.

520563242461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145163.

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 520563242461 in words is "five hundred twenty billion, five hundred sixty-three million, two hundred forty-two thousand, four hundred sixty-one".