513553103 has 8 divisors (see below), whose sum is σ = 588117120. Its totient is φ = 439288920.

The previous prime is 513553097. The next prime is 513553127. The reversal of 513553103 is 301355315.

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

It is not a de Polignac number, because 513553103 - 2⁴ = 513553087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513513103) 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, 71273 + ... + 78146.

It is an arithmetic number, because the mean of its divisors is an integer number (73514640).

Almost surely, 2^513553103 is an apocalyptic number.

513553103 is a deficient number, since it is larger than the sum of its proper divisors (74564017).

513553103 is a wasteful number, since it uses less digits than its factorization.

513553103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149917.

The product of its (nonzero) digits is 3375, while the sum is 26.

The square root of 513553103 is about 22661.7100634528. The cubic root of 513553103 is about 800.8080912733.

The spelling of 513553103 in words is "five hundred thirteen million, five hundred fifty-three thousand, one hundred three".