521094912 has 288 divisors, whose sum is σ = 1634545920. Its totient is φ = 145981440.

The previous prime is 521094901. The next prime is 521094919. The reversal of 521094912 is 219490125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521094919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7777503 + ... + 7777569.

Almost surely, 2^521094912 is an apocalyptic number.

521094912 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 521094912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (817272960).

521094912 is an abundant number, since it is smaller than the sum of its proper divisors (1113451008).

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

521094912 is a wasteful number, since it uses less digits than its factorization.

521094912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 521094912 is about 22827.5034114552. The cubic root of 521094912 is about 804.7091587223.

The spelling of 521094912 in words is "five hundred twenty-one million, ninety-four thousand, nine hundred twelve".