520055241663 has 4 divisors (see below), whose sum is σ = 693406988888. Its totient is φ = 346703494440.

The previous prime is 520055241619. The next prime is 520055241683. The reversal of 520055241663 is 366142550025.

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

It is not a de Polignac number, because 520055241663 - 2¹³ = 520055233471 is a prime.

It is a super-2 number, since 2×520055241663² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520055241613) 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, 86675873608 + ... + 86675873613.

It is an arithmetic number, because the mean of its divisors is an integer number (173351747222).

Almost surely, 2^520055241663 is an apocalyptic number.

520055241663 is a deficient number, since it is larger than the sum of its proper divisors (173351747225).

520055241663 is a wasteful number, since it uses less digits than its factorization.

520055241663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173351747224.

The product of its (nonzero) digits is 216000, while the sum is 39.

Adding to 520055241663 its reverse (366142550025), we get a palindrome (886197791688).

The spelling of 520055241663 in words is "five hundred twenty billion, fifty-five million, two hundred forty-one thousand, six hundred sixty-three".