521025550403412 has 96 divisors (see below), whose sum is σ = 1287938900062080. Its totient is φ = 163370205306880.

The previous prime is 521025550403389. The next prime is 521025550403419. The reversal of 521025550403412 is 214304055520125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521025550403419) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10744764487 + ... + 10744812977.

It is an arithmetic number, because the mean of its divisors is an integer number (13416030208980).

Almost surely, 2^{521025550403412} is an apocalyptic number.

It is an amenable number.

521025550403412 is an abundant number, since it is smaller than the sum of its proper divisors (766913349658668).

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

521025550403412 is a wasteful number, since it uses less digits than its factorization.

521025550403412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76041 (or 76039 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 521025550403412 in words is "five hundred twenty-one trillion, twenty-five billion, five hundred fifty million, four hundred three thousand, four hundred twelve".