520015254512 has 40 divisors (see below), whose sum is σ = 1085407623216. Its totient is φ = 239923915776.

The previous prime is 520015254511. The next prime is 520015254541. The reversal of 520015254512 is 215452510025.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520015254511) by changing a digit.

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, 171083 + ... + 1034069.

Almost surely, 2^520015254512 is an apocalyptic number.

520015254512 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

520015254512 is an abundant number, since it is smaller than the sum of its proper divisors (565392368704).

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

520015254512 is a wasteful number, since it uses less digits than its factorization.

520015254512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865905 (or 865899 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

Adding to 520015254512 its reverse (215452510025), we get a palindrome (735467764537).

The spelling of 520015254512 in words is "five hundred twenty billion, fifteen million, two hundred fifty-four thousand, five hundred twelve".