512626 has 4 divisors (see below), whose sum is σ = 768942. Its totient is φ = 256312.

The previous prime is 512621. The next prime is 512641. The reversal of 512626 is 626215.

512626 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 626215 = 5 ⋅125243.

It can be written as a sum of positive squares in only one way, i.e., 488601 + 24025 = 699^2 + 155^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 512597 and 512606.

It is not an unprimeable number, because it can be changed into a prime (512621) by changing a digit.

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 as a sum of consecutive naturals, namely, 128155 + ... + 128158.

2⁵¹²⁶²⁶ is an apocalyptic number.

512626 is a deficient number, since it is larger than the sum of its proper divisors (256316).

512626 is a wasteful number, since it uses less digits than its factorization.

512626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256315.

The product of its digits is 720, while the sum is 22.

The square root of 512626 is about 715.9790499728. The cubic root of 512626 is about 80.0325908878.

The spelling of 512626 in words is "five hundred twelve thousand, six hundred twenty-six".