20535415001 has 2 divisors, whose sum is σ = 20535415002. Its totient is φ = 20535415000.

The previous prime is 20535414959. The next prime is 20535415079. The reversal of 20535415001 is 10051453502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17371240000 + 3164175001 = 131800^2 + 56251^2 .

It is a cyclic number.

It is not a de Polignac number, because 20535415001 - 2¹⁴ = 20535398617 is a prime.

It is not a weakly prime, because it can be changed into another prime (20535415501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10267707500 + 10267707501.

It is an arithmetic number, because the mean of its divisors is an integer number (10267707501).

Almost surely, 2^20535415001 is an apocalyptic number.

It is an amenable number.

20535415001 is a deficient number, since it is larger than the sum of its proper divisors (1).

20535415001 is an equidigital number, since it uses as much as digits as its factorization.

20535415001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3000, while the sum is 26.

Adding to 20535415001 its reverse (10051453502), we get a palindrome (30586868503).

The spelling of 20535415001 in words is "twenty billion, five hundred thirty-five million, four hundred fifteen thousand, one".