521441013 has 8 divisors (see below), whose sum is σ = 695368800. Its totient is φ = 347570288.

The previous prime is 521440979. The next prime is 521441023. The reversal of 521441013 is 310144125.

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 521441013 - 2⁸ = 521440757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521441023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16603 + ... + 36311.

It is an arithmetic number, because the mean of its divisors is an integer number (86921100).

Almost surely, 2^521441013 is an apocalyptic number.

It is an amenable number.

521441013 is a deficient number, since it is larger than the sum of its proper divisors (173927787).

521441013 is a wasteful number, since it uses less digits than its factorization.

521441013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28531.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 521441013 is about 22835.0829427003. The cubic root of 521441013 is about 804.8872766303.

Adding to 521441013 its reverse (310144125), we get a palindrome (831585138).

The spelling of 521441013 in words is "five hundred twenty-one million, four hundred forty-one thousand, thirteen".