505505500549 has 16 divisors (see below), whose sum is σ = 592023468672. Its totient is φ = 422657771328.

The previous prime is 505505500537. The next prime is 505505500583. The reversal of 505505500549 is 945005505505.

It is a cyclic number.

It is not a de Polignac number, because 505505500549 - 2¹⁷ = 505505369477 is a prime.

It is a super-2 number, since 2×505505500549² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505505506549) 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, 3873819 + ... + 4002184.

It is an arithmetic number, because the mean of its divisors is an integer number (37001466792).

Almost surely, 2^505505500549 is an apocalyptic number.

It is an amenable number.

505505500549 is a deficient number, since it is larger than the sum of its proper divisors (86517968123).

505505500549 is a wasteful number, since it uses less digits than its factorization.

505505500549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7876236.

The product of its (nonzero) digits is 562500, while the sum is 43.

The spelling of 505505500549 in words is "five hundred five billion, five hundred five million, five hundred thousand, five hundred forty-nine".