503052474707621 has 2 divisors, whose sum is σ = 503052474707622. Its totient is φ = 503052474707620.

The previous prime is 503052474707581. The next prime is 503052474707707. The reversal of 503052474707621 is 126707474250305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 501477351816100 + 1575122891521 = 22393690^2 + 1255039^2 .

It is a cyclic number.

It is not a de Polignac number, because 503052474707621 - 2¹⁰ = 503052474706597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503052474707021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251526237353810 + 251526237353811.

It is an arithmetic number, because the mean of its divisors is an integer number (251526237353811).

Almost surely, 2^{503052474707621} is an apocalyptic number.

It is an amenable number.

503052474707621 is a deficient number, since it is larger than the sum of its proper divisors (1).

503052474707621 is an equidigital number, since it uses as much as digits as its factorization.

503052474707621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9878400, while the sum is 53.

The spelling of 503052474707621 in words is "five hundred three trillion, fifty-two billion, four hundred seventy-four million, seven hundred seven thousand, six hundred twenty-one".