501563545145 has 8 divisors (see below), whose sum is σ = 648174427656. Its totient is φ = 370385387136.

The previous prime is 501563545129. The next prime is 501563545151. The reversal of 501563545145 is 541545365105.

It can be written as a sum of positive squares in 4 ways, for example, as 11496342841 + 490067202304 = 107221^2 + 700048^2 .

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 501563545145 - 2⁴ = 501563545129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 501563545096 and 501563545105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3858181052 + ... + 3858181181.

It is an arithmetic number, because the mean of its divisors is an integer number (81021803457).

Almost surely, 2^501563545145 is an apocalyptic number.

It is an amenable number.

501563545145 is a deficient number, since it is larger than the sum of its proper divisors (146610882511).

501563545145 is a wasteful number, since it uses less digits than its factorization.

501563545145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7716362251.

The product of its (nonzero) digits is 900000, while the sum is 44.

The spelling of 501563545145 in words is "five hundred one billion, five hundred sixty-three million, five hundred forty-five thousand, one hundred forty-five".