513550 has 12 divisors (see below), whose sum is σ = 955296. Its totient is φ = 205400.

The previous prime is 513533. The next prime is 513593. The reversal of 513550 is 55315.

513550 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

513550 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5086 + ... + 5185.

It is an arithmetic number, because the mean of its divisors is an integer number (79608).

2⁵¹³⁵⁵⁰ is an apocalyptic number.

513550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

513550 is a deficient number, since it is larger than the sum of its proper divisors (441746).

513550 is a wasteful number, since it uses less digits than its factorization.

513550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10283 (or 10278 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 19.

The square root of 513550 is about 716.6240297394. The cubic root of 513550 is about 80.0806478384.

Adding to 513550 its reverse (55315), we get a palindrome (568865).

The spelling of 513550 in words is "five hundred thirteen thousand, five hundred fifty".