780050055505 has 16 divisors (see below), whose sum is σ = 1069823649024. Its totient is φ = 534871108800.

The previous prime is 780050055401. The next prime is 780050055509. The reversal of 780050055505 is 505550050087.

780050055505 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 780050055505 - 2¹¹ = 780050053457 is a prime.

It is a Duffinian number.

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 in 15 ways as a sum of consecutive naturals, for example, 539455 + ... + 1360555.

It is an arithmetic number, because the mean of its divisors is an integer number (66863978064).

Almost surely, 2^780050055505 is an apocalyptic number.

It is an amenable number.

780050055505 is a deficient number, since it is larger than the sum of its proper divisors (289773593519).

780050055505 is a wasteful number, since it uses less digits than its factorization.

780050055505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848256.

The product of its (nonzero) digits is 175000, while the sum is 40.

The spelling of 780050055505 in words is "seven hundred eighty billion, fifty million, fifty-five thousand, five hundred five".