521314352 has 40 divisors (see below), whose sum is σ = 1122844800. Its totient is φ = 232842240.

The previous prime is 521314331. The next prime is 521314361. The reversal of 521314352 is 253413125.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33977 + ... + 46872.

It is an arithmetic number, because the mean of its divisors is an integer number (28071120).

Almost surely, 2^521314352 is an apocalyptic number.

521314352 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

521314352 is an abundant number, since it is smaller than the sum of its proper divisors (601530448).

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

521314352 is a wasteful number, since it uses less digits than its factorization.

521314352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80901 (or 80895 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 521314352 is about 22832.3093882332. The cubic root of 521314352 is about 804.8221007808.

Adding to 521314352 its reverse (253413125), we get a palindrome (774727477).

The spelling of 521314352 in words is "five hundred twenty-one million, three hundred fourteen thousand, three hundred fifty-two".