521426352 has 40 divisors (see below), whose sum is σ = 1359389680. Its totient is φ = 172212480.

The previous prime is 521426341. The next prime is 521426357. The reversal of 521426352 is 253624125.

It is not an unprimeable number, because it can be changed into a prime (521426357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44599 + ... + 55062.

It is an arithmetic number, because the mean of its divisors is an integer number (33984742).

Almost surely, 2^521426352 is an apocalyptic number.

It is an amenable number.

521426352 is an abundant number, since it is smaller than the sum of its proper divisors (837963328).

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

521426352 is a wasteful number, since it uses less digits than its factorization.

521426352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99781 (or 99775 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 521426352 is about 22834.7619212463. The cubic root of 521426352 is about 804.8797330714.

The spelling of 521426352 in words is "five hundred twenty-one million, four hundred twenty-six thousand, three hundred fifty-two".