513531032 has 16 divisors (see below), whose sum is σ = 1100423760. Its totient is φ = 220084704.

The previous prime is 513531023. The next prime is 513531037. The reversal of 513531032 is 230135315.

It is a junction number, because it is equal to n+sod(n) for n = 513530989 and 513531007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513531037) 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 3 ways as a sum of consecutive naturals, for example, 4585043 + ... + 4585154.

It is an arithmetic number, because the mean of its divisors is an integer number (68776485).

Almost surely, 2^513531032 is an apocalyptic number.

It is an amenable number.

513531032 is an abundant number, since it is smaller than the sum of its proper divisors (586892728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513531032 is a wasteful number, since it uses less digits than its factorization.

513531032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9170210 (or 9170206 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 513531032 is about 22661.2230914397. The cubic root of 513531032 is about 800.7966189844.

Adding to 513531032 its reverse (230135315), we get a palindrome (743666347).

The spelling of 513531032 in words is "five hundred thirteen million, five hundred thirty-one thousand, thirty-two".