68055519 has 8 divisors (see below), whose sum is σ = 103703680. Its totient is φ = 38888856.

The previous prime is 68055479. The next prime is 68055521. The reversal of 68055519 is 91555086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68055519 - 2⁷ = 68055391 is a prime.

It is a super-2 number, since 2×68055519² = 9263107332718722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68055599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1620349 + ... + 1620390.

It is an arithmetic number, because the mean of its divisors is an integer number (12962960).

Almost surely, 2^68055519 is an apocalyptic number.

68055519 is a deficient number, since it is larger than the sum of its proper divisors (35648161).

68055519 is a wasteful number, since it uses less digits than its factorization.

68055519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3240749.

The product of its (nonzero) digits is 54000, while the sum is 39.

The square root of 68055519 is about 8249.5768982415. The cubic root of 68055519 is about 408.2765630179.

The spelling of 68055519 in words is "sixty-eight million, fifty-five thousand, five hundred nineteen".