503442811 has 16 divisors (see below), whose sum is σ = 547274880. Its totient is φ = 461345920.

The previous prime is 503442809. The next prime is 503442827. The reversal of 503442811 is 118244305.

It is a cyclic number.

It is not a de Polignac number, because 503442811 - 2¹ = 503442809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 503442811.

It is not an unprimeable number, because it can be changed into a prime (503440811) 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 15 ways as a sum of consecutive naturals, for example, 104976 + ... + 109666.

It is an arithmetic number, because the mean of its divisors is an integer number (34204680).

Almost surely, 2^503442811 is an apocalyptic number.

503442811 is a deficient number, since it is larger than the sum of its proper divisors (43832069).

503442811 is a wasteful number, since it uses less digits than its factorization.

503442811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4874.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 503442811 is about 22437.5313035993. The cubic root of 503442811 is about 795.5180679774.

The spelling of 503442811 in words is "five hundred three million, four hundred forty-two thousand, eight hundred eleven".