501240501125201 has 4 divisors (see below), whose sum is σ = 503146358544192. Its totient is φ = 499334643706212.

The previous prime is 501240501125167. The next prime is 501240501125209. The reversal of 501240501125201 is 102521105042105.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 501240501125201 - 2¹⁴ = 501240501108817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501240501125209) 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 3 ways as a sum of consecutive naturals, for example, 952928709101 + ... + 952928709626.

It is an arithmetic number, because the mean of its divisors is an integer number (125786589636048).

Almost surely, 2^{501240501125201} is an apocalyptic number.

It is an amenable number.

501240501125201 is a deficient number, since it is larger than the sum of its proper divisors (1905857418991).

501240501125201 is a wasteful number, since it uses less digits than its factorization.

501240501125201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905857418990.

The product of its (nonzero) digits is 4000, while the sum is 29.

Adding to 501240501125201 its reverse (102521105042105), we get a palindrome (603761606167306).

The spelling of 501240501125201 in words is "five hundred one trillion, two hundred forty billion, five hundred one million, one hundred twenty-five thousand, two hundred one".