512555 has 8 divisors (see below), whose sum is σ = 641952. Its totient is φ = 392128.

The previous prime is 512543. The next prime is 512569. The reversal of 512555 is 555215.

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

It is a cyclic number.

It is not a de Polignac number, because 512555 - 2¹⁶ = 447019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 512555.

It is an unprimeable 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 7 ways as a sum of consecutive naturals, for example, 2114 + ... + 2343.

It is an arithmetic number, because the mean of its divisors is an integer number (80244).

2⁵¹²⁵⁵⁵ is an apocalyptic number.

512555 is a deficient number, since it is larger than the sum of its proper divisors (129397).

512555 is a wasteful number, since it uses less digits than its factorization.

512555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4485.

The product of its digits is 1250, while the sum is 23.

The square root of 512555 is about 715.9294657995. The cubic root of 512555 is about 80.0288958116.

Adding to 512555 its sum of digits (23), we get a triangular number (512578 = T₁₀₁₂).

It can be divided in two parts, 51 and 2555, that multiplied together give a triangular number (130305 = T₅₁₀).

The spelling of 512555 in words is "five hundred twelve thousand, five hundred fifty-five".