521351364 has 12 divisors (see below), whose sum is σ = 1216486544. Its totient is φ = 173783784.

The previous prime is 521351353. The next prime is 521351399. The reversal of 521351364 is 463153125.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×521351364³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 21722962 + ... + 21722985.

Almost surely, 2^521351364 is an apocalyptic number.

It is an amenable number.

521351364 is an abundant number, since it is smaller than the sum of its proper divisors (695135180).

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

521351364 is a wasteful number, since it uses less digits than its factorization.

521351364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43445954 (or 43445952 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 521351364 is about 22833.1198919464. The cubic root of 521351364 is about 804.8411471077.

The spelling of 521351364 in words is "five hundred twenty-one million, three hundred fifty-one thousand, three hundred sixty-four".