513341521 has 16 divisors (see below), whose sum is σ = 643563648. Its totient is φ = 397785600.

The previous prime is 513341519. The next prime is 513341533. The reversal of 513341521 is 125143315.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 513341521 - 2¹ = 513341519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (513341551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4480 + ... + 32353.

It is an arithmetic number, because the mean of its divisors is an integer number (40222728).

Almost surely, 2^513341521 is an apocalyptic number.

It is an amenable number.

513341521 is a deficient number, since it is larger than the sum of its proper divisors (130222127).

513341521 is a wasteful number, since it uses less digits than its factorization.

513341521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37032.

The product of its digits is 1800, while the sum is 25.

The square root of 513341521 is about 22657.0413116982. The cubic root of 513341521 is about 800.6980994983.

Adding to 513341521 its reverse (125143315), we get a palindrome (638484836).

The spelling of 513341521 in words is "five hundred thirteen million, three hundred forty-one thousand, five hundred twenty-one".