505545055597 has 16 divisors (see below), whose sum is σ = 531792574720. Its totient is φ = 480094579008.

The previous prime is 505545055577. The next prime is 505545055619. The reversal of 505545055597 is 795550545505.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505545055597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505545055577) 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, 665253 + ... + 1205674.

It is an arithmetic number, because the mean of its divisors is an integer number (33237035920).

Almost surely, 2^505545055597 is an apocalyptic number.

It is an amenable number.

505545055597 is a deficient number, since it is larger than the sum of its proper divisors (26247519123).

505545055597 is a wasteful number, since it uses less digits than its factorization.

505545055597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1871140.

The product of its (nonzero) digits is 19687500, while the sum is 55.

The spelling of 505545055597 in words is "five hundred five billion, five hundred forty-five million, fifty-five thousand, five hundred ninety-seven".