780050055506 has 4 divisors (see below), whose sum is σ = 1170075083262. Its totient is φ = 390025027752.

The previous prime is 780050055401. The next prime is 780050055509. The reversal of 780050055506 is 605550050087.

780050055506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 744363445225 + 35686610281 = 862765^2 + 188909^2 .

It is not an unprimeable number, because it can be changed into a prime (780050055509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195012513875 + ... + 195012513878.

Almost surely, 2^780050055506 is an apocalyptic number.

780050055506 is a deficient number, since it is larger than the sum of its proper divisors (390025027756).

780050055506 is a wasteful number, since it uses less digits than its factorization.

780050055506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390025027755.

The product of its (nonzero) digits is 210000, while the sum is 41.

The spelling of 780050055506 in words is "seven hundred eighty billion, fifty million, fifty-five thousand, five hundred six".