503956 has 18 divisors (see below), whose sum is σ = 933450. Its totient is φ = 238032.

The previous prime is 503947. The next prime is 503959. The reversal of 503956 is 659305.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 467856 + 36100 = 684^2 + 190^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503959) by changing a digit.

503956 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1270 + ... + 1618.

2⁵⁰³⁹⁵⁶ is an apocalyptic number.

It is an amenable number.

503956 is a deficient number, since it is larger than the sum of its proper divisors (429494).

503956 is a wasteful number, since it uses less digits than its factorization.

503956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 503956 is about 709.8985843062. The cubic root of 503956 is about 79.5788282371.

The spelling of 503956 in words is "five hundred three thousand, nine hundred fifty-six".