521850552 has 32 divisors (see below), whose sum is σ = 1314593280. Its totient is φ = 172621280.

The previous prime is 521850533. The next prime is 521850557. The reversal of 521850552 is 255058125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521850557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79848 + ... + 86135.

It is an arithmetic number, because the mean of its divisors is an integer number (41081040).

Almost surely, 2^521850552 is an apocalyptic number.

It is an amenable number.

521850552 is an abundant number, since it is smaller than the sum of its proper divisors (792742728).

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

521850552 is a wasteful number, since it uses less digits than its factorization.

521850552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166123 (or 166119 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 33.

The square root of 521850552 is about 22844.0485028377. The cubic root of 521850552 is about 805.0979405802.

The spelling of 521850552 in words is "five hundred twenty-one million, eight hundred fifty thousand, five hundred fifty-two".