520456400223051 has 8 divisors (see below), whose sum is σ = 693946247189200. Its totient is φ = 346968743369472.

The previous prime is 520456400223043. The next prime is 520456400223073. The reversal of 520456400223051 is 150322004654025.

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

It is not a de Polignac number, because 520456400223051 - 2³ = 520456400223043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520456400223451) 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, 546973570 + ... + 547924263.

It is an arithmetic number, because the mean of its divisors is an integer number (86743280898650).

Almost surely, 2^{520456400223051} is an apocalyptic number.

520456400223051 is a deficient number, since it is larger than the sum of its proper divisors (173489846966149).

520456400223051 is a wasteful number, since it uses less digits than its factorization.

520456400223051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095056285.

The product of its (nonzero) digits is 288000, while the sum is 39.

Adding to 520456400223051 its reverse (150322004654025), we get a palindrome (670778404877076).

The spelling of 520456400223051 in words is "five hundred twenty trillion, four hundred fifty-six billion, four hundred million, two hundred twenty-three thousand, fifty-one".