520551113951 has 8 divisors (see below), whose sum is σ = 567987600000. Its totient is φ = 473133570840.

The previous prime is 520551113933. The next prime is 520551114011. The reversal of 520551113951 is 159311155025.

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 520551113951 - 2²² = 520546919647 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 (520551116951) 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, 4678241 + ... + 4788218.

It is an arithmetic number, because the mean of its divisors is an integer number (70998450000).

Almost surely, 2^520551113951 is an apocalyptic number.

520551113951 is a deficient number, since it is larger than the sum of its proper divisors (47436486049).

520551113951 is a wasteful number, since it uses less digits than its factorization.

520551113951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9471469.

The product of its (nonzero) digits is 33750, while the sum is 38.

Adding to 520551113951 its reverse (159311155025), we get a palindrome (679862268976).

The spelling of 520551113951 in words is "five hundred twenty billion, five hundred fifty-one million, one hundred thirteen thousand, nine hundred fifty-one".