780050055550 has 48 divisors (see below), whose sum is σ = 1469034694512. Its totient is φ = 308132582400.

The previous prime is 780050055509. The next prime is 780050055557. The reversal of 780050055550 is 55550050087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780050055557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2061409 + ... + 2410291.

It is an arithmetic number, because the mean of its divisors is an integer number (30604889469).

Almost surely, 2^780050055550 is an apocalyptic number.

780050055550 is a deficient number, since it is larger than the sum of its proper divisors (688984638962).

780050055550 is a wasteful number, since it uses less digits than its factorization.

780050055550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349453 (or 349448 counting only the distinct ones).

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

The spelling of 780050055550 in words is "seven hundred eighty billion, fifty million, fifty-five thousand, five hundred fifty".