68545503 has 24 divisors (see below), whose sum is σ = 106928640. Its totient is φ = 42062400.

The previous prime is 68545493. The next prime is 68545511. The reversal of 68545503 is 30554586.

68545503 is a `hidden beast` number, since 68 + 545 + 50 + 3 = 666.

It is not a de Polignac number, because 68545503 - 2¹⁶ = 68479967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68545523) 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 23 ways as a sum of consecutive naturals, for example, 58978 + ... + 60128.

It is an arithmetic number, because the mean of its divisors is an integer number (4455360).

Almost surely, 2^68545503 is an apocalyptic number.

68545503 is a deficient number, since it is larger than the sum of its proper divisors (38383137).

68545503 is a wasteful number, since it uses less digits than its factorization.

68545503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679 (or 1676 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 68545503 is about 8279.2211590221. The cubic root of 68545503 is about 409.2540531388.

The spelling of 68545503 in words is "sixty-eight million, five hundred forty-five thousand, five hundred three".