505544445505 has 16 divisors (see below), whose sum is σ = 696635409600. Its totient is φ = 348317703360.

The previous prime is 505544445437. The next prime is 505544445559.

505544445505 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 505544445505 - 2⁷ = 505544445377 is a prime.

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, 241886250 + ... + 241888339.

It is an arithmetic number, because the mean of its divisors is an integer number (43539713100).

Almost surely, 2^505544445505 is an apocalyptic number.

505544445505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

505544445505 is a deficient number, since it is larger than the sum of its proper divisors (191090964095).

505544445505 is a wasteful number, since it uses less digits than its factorization.

505544445505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483774624.

The product of its (nonzero) digits is 4000000, while the sum is 46.

The spelling of 505544445505 in words is "five hundred five billion, five hundred forty-four million, four hundred forty-five thousand, five hundred five".