521341253 has 8 divisors (see below), whose sum is σ = 551462208. Its totient is φ = 491841504.

The previous prime is 521341217. The next prime is 521341273. The reversal of 521341253 is 352143125.

It is a happy number.

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 521341253 - 2¹⁰ = 521340229 is a prime.

It is a super-2 number, since 2×521341253² = 543593404159220018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521341213) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 153575 + ... + 156932.

It is an arithmetic number, because the mean of its divisors is an integer number (68932776).

Almost surely, 2^521341253 is an apocalyptic number.

It is an amenable number.

521341253 is a deficient number, since it is larger than the sum of its proper divisors (30120955).

521341253 is a wasteful number, since it uses less digits than its factorization.

521341253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310603.

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

The square root of 521341253 is about 22832.8984800441. The cubic root of 521341253 is about 804.8359440897.

Adding to 521341253 its reverse (352143125), we get a palindrome (873484378).

The spelling of 521341253 in words is "five hundred twenty-one million, three hundred forty-one thousand, two hundred fifty-three".