521852328 has 64 divisors (see below), whose sum is σ = 1525896000. Its totient is φ = 164794176.

The previous prime is 521852293. The next prime is 521852339. The reversal of 521852328 is 823258125.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 521852292 and 521852301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59475 + ... + 67682.

It is an arithmetic number, because the mean of its divisors is an integer number (23842125).

Almost surely, 2^521852328 is an apocalyptic number.

It is an amenable number.

521852328 is an abundant number, since it is smaller than the sum of its proper divisors (1004043672).

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

521852328 is a wasteful number, since it uses less digits than its factorization.

521852328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127191 (or 127181 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 521852328 is about 22844.0873750737. The cubic root of 521852328 is about 805.0988539019.

The spelling of 521852328 in words is "five hundred twenty-one million, eight hundred fifty-two thousand, three hundred twenty-eight".