521314493 has 8 divisors (see below), whose sum is σ = 596090688. Its totient is φ = 446613984.

The previous prime is 521314483. The next prime is 521314511. The reversal of 521314493 is 394413125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 521314493 - 2¹² = 521310397 is a prime.

It is a super-2 number, since 2×521314493² = 543537601223694098, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521314483) 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, 3296 + ... + 32457.

It is an arithmetic number, because the mean of its divisors is an integer number (74511336).

Almost surely, 2^521314493 is an apocalyptic number.

It is an amenable number.

521314493 is a deficient number, since it is larger than the sum of its proper divisors (74776195).

521314493 is a wasteful number, since it uses less digits than its factorization.

521314493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37843.

The product of its digits is 12960, while the sum is 32.

The square root of 521314493 is about 22832.3124759627. The cubic root of 521314493 is about 804.8221733409.

The spelling of 521314493 in words is "five hundred twenty-one million, three hundred fourteen thousand, four hundred ninety-three".