520043345542 has 16 divisors (see below), whose sum is σ = 891553888512. Its totient is φ = 222862966920.

The previous prime is 520043345533. The next prime is 520043345557. The reversal of 520043345542 is 245543340025.

It is a super-2 number, since 2×520043345542² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 807184 + ... + 1300627.

It is an arithmetic number, because the mean of its divisors is an integer number (55722118032).

Almost surely, 2^520043345542 is an apocalyptic number.

520043345542 is a deficient number, since it is larger than the sum of its proper divisors (371510542970).

520043345542 is a wasteful number, since it uses less digits than its factorization.

520043345542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125443.

The product of its (nonzero) digits is 288000, while the sum is 37.

Adding to 520043345542 its reverse (245543340025), we get a palindrome (765586685567).

The spelling of 520043345542 in words is "five hundred twenty billion, forty-three million, three hundred forty-five thousand, five hundred forty-two".