521474496 has 56 divisors (see below), whose sum is σ = 1395282960. Its totient is φ = 171866112.

The previous prime is 521474479. The next prime is 521474501. The reversal of 521474496 is 694474125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1830 + ... + 32346.

Almost surely, 2^521474496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 521474496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (697641480).

521474496 is an abundant number, since it is smaller than the sum of its proper divisors (873808464).

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

521474496 is a wasteful number, since it uses less digits than its factorization.

521474496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30621 (or 30611 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 521474496 is about 22835.8160791332. The cubic root of 521474496 is about 804.9045041870.

The spelling of 521474496 in words is "five hundred twenty-one million, four hundred seventy-four thousand, four hundred ninety-six".