520442251142 has 48 divisors (see below), whose sum is σ = 874058314752. Its totient is φ = 230488312080.

The previous prime is 520442251073. The next prime is 520442251169. The reversal of 520442251142 is 241152244025.

It is a junction number, because it is equal to n+sod(n) for n = 520442251099 and 520442251108.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 10813343 + ... + 10861365.

It is an arithmetic number, because the mean of its divisors is an integer number (18209548224).

Almost surely, 2^520442251142 is an apocalyptic number.

520442251142 is a deficient number, since it is larger than the sum of its proper divisors (353616063610).

520442251142 is a wasteful number, since it uses less digits than its factorization.

520442251142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48353 (or 48306 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 520442251142 its reverse (241152244025), we get a palindrome (761594495167).

The spelling of 520442251142 in words is "five hundred twenty billion, four hundred forty-two million, two hundred fifty-one thousand, one hundred forty-two".