505545302445 has 16 divisors (see below), whose sum is σ = 808910278272. Its totient is φ = 269611563200.

The previous prime is 505545302441. The next prime is 505545302447. The reversal of 505545302445 is 544203545505.

It is not a de Polignac number, because 505545302445 - 2² = 505545302441 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 505545302397 and 505545302406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505545302441) 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, 451017 + ... + 1102046.

It is an arithmetic number, because the mean of its divisors is an integer number (50556892392).

Almost surely, 2^505545302445 is an apocalyptic number.

It is an amenable number.

505545302445 is a deficient number, since it is larger than the sum of its proper divisors (303364975827).

505545302445 is a wasteful number, since it uses less digits than its factorization.

505545302445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574772.

The product of its (nonzero) digits is 1200000, while the sum is 42.

The spelling of 505545302445 in words is "five hundred five billion, five hundred forty-five million, three hundred two thousand, four hundred forty-five".