555277780505 has 16 divisors (see below), whose sum is σ = 761560276224. Its totient is φ = 380743675200.

The previous prime is 555277780427. The next prime is 555277780511. The reversal of 555277780505 is 505087772555.

It is not a de Polignac number, because 555277780505 - 2⁸ = 555277780249 is a prime.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383180 + ... + 1121330.

It is an arithmetic number, because the mean of its divisors is an integer number (47597517264).

Almost surely, 2^555277780505 is an apocalyptic number.

It is an amenable number.

555277780505 is a deficient number, since it is larger than the sum of its proper divisors (206282495719).

555277780505 is a wasteful number, since it uses less digits than its factorization.

555277780505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759656.

The product of its (nonzero) digits is 17150000, while the sum is 56.

The spelling of 555277780505 in words is "five hundred fifty-five billion, two hundred seventy-seven million, seven hundred eighty thousand, five hundred five".