17680055 has 8 divisors (see below), whose sum is σ = 21242112. Its totient is φ = 14126688.

The previous prime is 17680049. The next prime is 17680067. The reversal of 17680055 is 55008671.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17680055 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3809 + ... + 7061.

It is an arithmetic number, because the mean of its divisors is an integer number (2655264).

Almost surely, 2^17680055 is an apocalyptic number.

17680055 is a deficient number, since it is larger than the sum of its proper divisors (3562057).

17680055 is a wasteful number, since it uses less digits than its factorization.

17680055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4345.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 17680055 is about 4204.7657485287. The cubic root of 17680055 is about 260.5120824828.

The spelling of 17680055 in words is "seventeen million, six hundred eighty thousand, fifty-five".