68055499 has 4 divisors (see below), whose sum is σ = 68716336. Its totient is φ = 67394664.

The previous prime is 68055479. The next prime is 68055521. The reversal of 68055499 is 99455086.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99455086 = 2 ⋅49727543.

It is a cyclic number.

It is not a de Polignac number, because 68055499 - 2⁷ = 68055371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68055409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330264 + ... + 330469.

It is an arithmetic number, because the mean of its divisors is an integer number (17179084).

Almost surely, 2^68055499 is an apocalyptic number.

68055499 is a deficient number, since it is larger than the sum of its proper divisors (660837).

68055499 is a wasteful number, since it uses less digits than its factorization.

68055499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660836.

The product of its (nonzero) digits is 388800, while the sum is 46.

The square root of 68055499 is about 8249.5756860580. The cubic root of 68055499 is about 408.2765230234.

The spelling of 68055499 in words is "sixty-eight million, fifty-five thousand, four hundred ninety-nine".