521248852848 has 40 divisors (see below), whose sum is σ = 1371966326928. Its totient is φ = 170471322112.

The previous prime is 521248852841. The next prime is 521248852877. The reversal of 521248852848 is 848258842125.

It is a super-2 number, since 2×521248852848² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521248852841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102444165 + ... + 102449252.

Almost surely, 2^521248852848 is an apocalyptic number.

It is an amenable number.

521248852848 is an abundant number, since it is smaller than the sum of its proper divisors (850717474080).

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

521248852848 is a wasteful number, since it uses less digits than its factorization.

521248852848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204893481 (or 204893475 counting only the distinct ones).

The product of its digits is 13107200, while the sum is 57.

The spelling of 521248852848 in words is "five hundred twenty-one billion, two hundred forty-eight million, eight hundred fifty-two thousand, eight hundred forty-eight".