5203455404021 has 12 divisors (see below), whose sum is σ = 6053218516332. Its totient is φ = 4459942988928.

The previous prime is 5203455404003. The next prime is 5203455404023. The reversal of 5203455404021 is 1204045543025.

It can be written as a sum of positive squares in 2 ways, for example, as 2016655608100 + 3186799795921 = 1420090^2 + 1785161^2 .

It is a de Polignac number, because none of the positive numbers 2^k-5203455404021 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 (5203455404023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 548570 + ... + 3272283.

It is an arithmetic number, because the mean of its divisors is an integer number (504434876361).

Almost surely, 2^{5203455404021} is an apocalyptic number.

It is an amenable number.

5203455404021 is a deficient number, since it is larger than the sum of its proper divisors (849763112311).

5203455404021 is a wasteful number, since it uses less digits than its factorization.

5203455404021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3848660 (or 3848653 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

The spelling of 5203455404021 in words is "five trillion, two hundred three billion, four hundred fifty-five million, four hundred four thousand, twenty-one".