505884553655 has 16 divisors (see below), whose sum is σ = 662033930880. Its totient is φ = 368847468288.

The previous prime is 505884553649. The next prime is 505884553693. The reversal of 505884553655 is 556355488505.

It is not a de Polignac number, because 505884553655 - 2²² = 505880359351 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505884553594 and 505884553603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49253342 + ... + 49263611.

It is an arithmetic number, because the mean of its divisors is an integer number (41377120680).

Almost surely, 2^505884553655 is an apocalyptic number.

505884553655 is a deficient number, since it is larger than the sum of its proper divisors (156149377225).

505884553655 is a wasteful number, since it uses less digits than its factorization.

505884553655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98517050.

The product of its (nonzero) digits is 72000000, while the sum is 59.

The spelling of 505884553655 in words is "five hundred five billion, eight hundred eighty-four million, five hundred fifty-three thousand, six hundred fifty-five".