68503 has 4 divisors (see below), whose sum is σ = 69688. Its totient is φ = 67320.

The previous prime is 68501. The next prime is 68507. The reversal of 68503 is 30586.

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 68503 - 2¹ = 68501 is a prime.

It is a super-2 number, since 2×68503² = 9385322018, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501 + ... + 622.

It is an arithmetic number, because the mean of its divisors is an integer number (17422).

2⁶⁸⁵⁰³ is an apocalyptic number.

68503 is a deficient number, since it is larger than the sum of its proper divisors (1185).

68503 is a wasteful number, since it uses less digits than its factorization.

68503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184.

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

The square root of 68503 is about 261.7307777087. The cubic root of 68503 is about 40.9169446949.

The spelling of 68503 in words is "sixty-eight thousand, five hundred three".