68558002 has 4 divisors (see below), whose sum is σ = 102837006. Its totient is φ = 34279000.

The previous prime is 68557999. The next prime is 68558011. The reversal of 68558002 is 20085586.

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

It can be written as a sum of positive squares in only one way, i.e., 68211081 + 346921 = 8259^2 + 589^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17139499 + ... + 17139502.

Almost surely, 2^68558002 is an apocalyptic number.

68558002 is a deficient number, since it is larger than the sum of its proper divisors (34279004).

68558002 is a wasteful number, since it uses less digits than its factorization.

68558002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34279003.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 68558002 is about 8279.9759661487. The cubic root of 68558002 is about 409.2789269103.

The spelling of 68558002 in words is "sixty-eight million, five hundred fifty-eight thousand, two".