68533001 has 4 divisors (see below), whose sum is σ = 72564372. Its totient is φ = 64501632.

The previous prime is 68532983. The next prime is 68533009. The reversal of 68533001 is 10033586.

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

It can be written as a sum of positive squares in 2 ways, for example, as 27573001 + 40960000 = 5251^2 + 6400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68533001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68533009) 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, 2015660 + ... + 2015693.

It is an arithmetic number, because the mean of its divisors is an integer number (18141093).

Almost surely, 2^68533001 is an apocalyptic number.

It is an amenable number.

68533001 is a deficient number, since it is larger than the sum of its proper divisors (4031371).

68533001 is a wasteful number, since it uses less digits than its factorization.

68533001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4031370.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 68533001 is about 8278.4661018814. The cubic root of 68533001 is about 409.2291703722.

Adding to 68533001 its reverse (10033586), we get a palindrome (78566587).

The spelling of 68533001 in words is "sixty-eight million, five hundred thirty-three thousand, one".