68564003 has 4 divisors (see below), whose sum is σ = 68582880. Its totient is φ = 68545128.

The previous prime is 68563991. The next prime is 68564029. The reversal of 68564003 is 30046586.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30046586 = 2 ⋅15023293.

It is a cyclic number.

It is not a de Polignac number, because 68564003 - 2⁴ = 68563987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68564063) 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, 2075 + ... + 11892.

It is an arithmetic number, because the mean of its divisors is an integer number (17145720).

Almost surely, 2^68564003 is an apocalyptic number.

68564003 is a deficient number, since it is larger than the sum of its proper divisors (18877).

68564003 is a wasteful number, since it uses less digits than its factorization.

68564003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18876.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 68564003 is about 8280.3383384980. The cubic root of 68564003 is about 409.2908681917.

The spelling of 68564003 in words is "sixty-eight million, five hundred sixty-four thousand, three".