501266500611025 has 96 divisors (see below), whose sum is σ = 675297634622688. Its totient is φ = 367611646771200.

The previous prime is 501266500611013. The next prime is 501266500611029. The reversal of 501266500611025 is 520116005662105.

It can be written as a sum of positive squares in 48 ways, for example, as 404954809533121 + 96311691077904 = 20123489^2 + 9813852^2 .

It is a de Polignac number, because none of the positive numbers 2^k-501266500611025 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501266500611029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 54645858339 + ... + 54645867511.

It is an arithmetic number, because the mean of its divisors is an integer number (7034350360653).

Almost surely, 2^{501266500611025} is an apocalyptic number.

It is an amenable number.

501266500611025 is a deficient number, since it is larger than the sum of its proper divisors (174031134011663).

501266500611025 is a wasteful number, since it uses less digits than its factorization.

501266500611025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14071 (or 14066 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 501266500611025 in words is "five hundred one trillion, two hundred sixty-six billion, five hundred million, six hundred eleven thousand, twenty-five".