20413526532501 has 4 divisors (see below), whose sum is σ = 27218035376672. Its totient is φ = 13609017688332.

The previous prime is 20413526532499. The next prime is 20413526532521. The reversal of 20413526532501 is 10523562531402.

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 not a de Polignac number, because 20413526532501 - 2¹ = 20413526532499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20413526532501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20413526532521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3402254422081 + ... + 3402254422086.

It is an arithmetic number, because the mean of its divisors is an integer number (6804508844168).

Almost surely, 2^{20413526532501} is an apocalyptic number.

It is an amenable number.

20413526532501 is a deficient number, since it is larger than the sum of its proper divisors (6804508844171).

20413526532501 is an equidigital number, since it uses as much as digits as its factorization.

20413526532501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6804508844170.

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 20413526532501 in words is "twenty trillion, four hundred thirteen billion, five hundred twenty-six million, five hundred thirty-two thousand, five hundred one".