780830055 has 24 divisors (see below), whose sum is σ = 1390021152. Its totient is φ = 405186624.

The previous prime is 780830027. The next prime is 780830081. The reversal of 780830055 is 550038087.

It is a happy number.

780830055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 780830055 - 2⁸ = 780829799 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 232819 + ... + 236148.

It is an arithmetic number, because the mean of its divisors is an integer number (57917548).

Almost surely, 2^780830055 is an apocalyptic number.

780830055 is a deficient number, since it is larger than the sum of its proper divisors (609191097).

780830055 is a wasteful number, since it uses less digits than its factorization.

780830055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469015 (or 469012 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 780830055 is about 27943.3365044334. The cubic root of 780830055 is about 920.8428220849.

The spelling of 780830055 in words is "seven hundred eighty million, eight hundred thirty thousand, fifty-five".