513633023 has 8 divisors (see below), whose sum is σ = 543471600. Its totient is φ = 484075008.

The previous prime is 513633013. The next prime is 513633041. The reversal of 513633023 is 320336315.

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

It is a de Polignac number, because none of the positive numbers 2^k-513633023 is a prime.

It is a super-2 number, since 2×513633023² = 527637764632237058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 513632983 and 513633001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513633013) 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, 66368 + ... + 73701.

It is an arithmetic number, because the mean of its divisors is an integer number (67933950).

Almost surely, 2^513633023 is an apocalyptic number.

513633023 is a deficient number, since it is larger than the sum of its proper divisors (29838577).

513633023 is a wasteful number, since it uses less digits than its factorization.

513633023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140281.

The product of its (nonzero) digits is 4860, while the sum is 26.

The square root of 513633023 is about 22663.4733216248. The cubic root of 513633023 is about 800.8496301538.

Adding to 513633023 its reverse (320336315), we get a palindrome (833969338).

The spelling of 513633023 in words is "five hundred thirteen million, six hundred thirty-three thousand, twenty-three".