20530424002601 has 4 divisors (see below), whose sum is σ = 21738096002772. Its totient is φ = 19322752002432.

The previous prime is 20530424002579. The next prime is 20530424002607. The reversal of 20530424002601 is 10620042403502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18628727842201 + 1901696160400 = 4316101^2 + 1379020^2 .

It is a cyclic number.

It is not a de Polignac number, because 20530424002601 - 2¹⁴ = 20530423986217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20530424002607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 603836000060 + ... + 603836000093.

It is an arithmetic number, because the mean of its divisors is an integer number (5434524000693).

Almost surely, 2^{20530424002601} is an apocalyptic number.

It is an amenable number.

20530424002601 is a deficient number, since it is larger than the sum of its proper divisors (1207672000171).

20530424002601 is a wasteful number, since it uses less digits than its factorization.

20530424002601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207672000170.

The product of its (nonzero) digits is 11520, while the sum is 29.

The spelling of 20530424002601 in words is "twenty trillion, five hundred thirty billion, four hundred twenty-four million, two thousand, six hundred one".