68055479 has 2 divisors, whose sum is σ = 68055480. Its totient is φ = 68055478.

The previous prime is 68055461. The next prime is 68055521. The reversal of 68055479 is 97455086.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68055479 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68055409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34027739 + 34027740.

It is an arithmetic number, because the mean of its divisors is an integer number (34027740).

Almost surely, 2^68055479 is an apocalyptic number.

68055479 is a deficient number, since it is larger than the sum of its proper divisors (1).

68055479 is an equidigital number, since it uses as much as digits as its factorization.

68055479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 68055479 is about 8249.5744738744. The cubic root of 68055479 is about 408.2764830290.

The spelling of 68055479 in words is "sixty-eight million, fifty-five thousand, four hundred seventy-nine".