520255424120 has 32 divisors (see below), whose sum is σ = 1184678021520. Its totient is φ = 205594913280.

The previous prime is 520255424111. The next prime is 520255424141. The reversal of 520255424120 is 21424552025.

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 7 ways as a sum of consecutive naturals, for example, 78348401 + ... + 78355040.

Almost surely, 2^520255424120 is an apocalyptic number.

It is an amenable number.

520255424120 is an abundant number, since it is smaller than the sum of its proper divisors (664422597400).

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

520255424120 is a wasteful number, since it uses less digits than its factorization.

520255424120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156703535 (or 156703531 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

Adding to 520255424120 its reverse (21424552025), we get a palindrome (541679976145).

The spelling of 520255424120 in words is "five hundred twenty billion, two hundred fifty-five million, four hundred twenty-four thousand, one hundred twenty".