520422051504 has 40 divisors (see below), whose sum is σ = 1354095762880. Its totient is φ = 172226000448.

The previous prime is 520422051469. The next prime is 520422051559. The reversal of 520422051504 is 405150224025.

It is a super-2 number, since 2×520422051504² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38993782 + ... + 39007125.

It is an arithmetic number, because the mean of its divisors is an integer number (33852394072).

Almost surely, 2^520422051504 is an apocalyptic number.

It is an amenable number.

520422051504 is an abundant number, since it is smaller than the sum of its proper divisors (833673711376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520422051504 is a wasteful number, since it uses less digits than its factorization.

520422051504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78001057 (or 78001051 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 520422051504 its reverse (405150224025), we get a palindrome (925572275529).

The spelling of 520422051504 in words is "five hundred twenty billion, four hundred twenty-two million, fifty-one thousand, five hundred four".