505240031245 has 8 divisors (see below), whose sum is σ = 606418815384. Its totient is φ = 404104839744.

The previous prime is 505240031227. The next prime is 505240031249. The reversal of 505240031245 is 542130042505.

It can be written as a sum of positive squares in 4 ways, for example, as 88525886089 + 416714145156 = 297533^2 + 645534^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 505240031245 - 2⁷ = 505240031117 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 (505240031249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10872654 + ... + 10919023.

It is an arithmetic number, because the mean of its divisors is an integer number (75802351923).

Almost surely, 2^505240031245 is an apocalyptic number.

It is an amenable number.

505240031245 is a deficient number, since it is larger than the sum of its proper divisors (101178784139).

505240031245 is a wasteful number, since it uses less digits than its factorization.

505240031245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21796319.

The product of its (nonzero) digits is 24000, while the sum is 31.

The spelling of 505240031245 in words is "five hundred five billion, two hundred forty million, thirty-one thousand, two hundred forty-five".