503255111 has 4 divisors (see below), whose sum is σ = 525135792. Its totient is φ = 481374432.

The previous prime is 503255107. The next prime is 503255117. The reversal of 503255111 is 111552305.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 503255111 - 2² = 503255107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 21880657 = 503255111 / (5 + 0 + 3 + 2 + 5 + 5 + 1 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503255117) 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 3 ways as a sum of consecutive naturals, for example, 10940306 + ... + 10940351.

It is an arithmetic number, because the mean of its divisors is an integer number (131283948).

Almost surely, 2^503255111 is an apocalyptic number.

503255111 is a deficient number, since it is larger than the sum of its proper divisors (21880681).

503255111 is a wasteful number, since it uses less digits than its factorization.

503255111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21880680.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 503255111 is about 22433.3481896930. The cubic root of 503255111 is about 795.4191906081.

The spelling of 503255111 in words is "five hundred three million, two hundred fifty-five thousand, one hundred eleven".