305680063 has 16 divisors (see below), whose sum is σ = 338881536. Its totient is φ = 273984480.

The previous prime is 305680031. The next prime is 305680069. The reversal of 305680063 is 360086503.

It is a cyclic number.

It is not a de Polignac number, because 305680063 - 2⁵ = 305680031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305680069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59370 + ... + 64312.

It is an arithmetic number, because the mean of its divisors is an integer number (21180096).

Almost surely, 2^305680063 is an apocalyptic number.

305680063 is a deficient number, since it is larger than the sum of its proper divisors (33201473).

305680063 is a wasteful number, since it uses less digits than its factorization.

305680063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5094.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 305680063 is about 17483.7085024888. The cubic root of 305680063 is about 673.6314754625.

The spelling of 305680063 in words is "three hundred five million, six hundred eighty thousand, sixty-three".