503505343 has 16 divisors (see below), whose sum is σ = 555540480. Its totient is φ = 452541600.

The previous prime is 503505329. The next prime is 503505349. The reversal of 503505343 is 343505305.

It is a cyclic number.

It is not a de Polignac number, because 503505343 - 2¹⁷ = 503374271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503505349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 612873 + ... + 613693.

It is an arithmetic number, because the mean of its divisors is an integer number (34721280).

Almost surely, 2^503505343 is an apocalyptic number.

503505343 is a deficient number, since it is larger than the sum of its proper divisors (52035137).

503505343 is a wasteful number, since it uses less digits than its factorization.

503505343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398.

The product of its (nonzero) digits is 13500, while the sum is 28.

The square root of 503505343 is about 22438.9247291398. The cubic root of 503505343 is about 795.5510033809.

The spelling of 503505343 in words is "five hundred three million, five hundred five thousand, three hundred forty-three".