505505524255145 has 8 divisors (see below), whose sum is σ = 612612635335560. Its totient is φ = 400400415251200.

The previous prime is 505505524255139. The next prime is 505505524255169. The reversal of 505505524255145 is 541552425505505.

It can be written as a sum of positive squares in 4 ways, for example, as 318212367666064 + 187293156589081 = 17838508^2 + 13685509^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-505505524255145 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500500518560 + ... + 500500519569.

It is an arithmetic number, because the mean of its divisors is an integer number (76576579416945).

Almost surely, 2^{505505524255145} is an apocalyptic number.

It is an amenable number.

505505524255145 is a deficient number, since it is larger than the sum of its proper divisors (107107111080415).

505505524255145 is a wasteful number, since it uses less digits than its factorization.

505505524255145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001001038235.

The product of its (nonzero) digits is 25000000, while the sum is 53.

The spelling of 505505524255145 in words is "five hundred five trillion, five hundred five billion, five hundred twenty-four million, two hundred fifty-five thousand, one hundred forty-five".