20125526636201 has 4 divisors (see below), whose sum is σ = 23000601869952. Its totient is φ = 17250451402452.

The previous prime is 20125526636191. The next prime is 20125526636213. The reversal of 20125526636201 is 10263662552102.

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 a cyclic number.

It is not a de Polignac number, because 20125526636201 - 2²² = 20125522441897 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20125526636251) 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, 1437537616865 + ... + 1437537616878.

It is an arithmetic number, because the mean of its divisors is an integer number (5750150467488).

Almost surely, 2^{20125526636201} is an apocalyptic number.

It is an amenable number.

20125526636201 is a deficient number, since it is larger than the sum of its proper divisors (2875075233751).

20125526636201 is an equidigital number, since it uses as much as digits as its factorization.

20125526636201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2875075233750.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 20125526636201 in words is "twenty trillion, one hundred twenty-five billion, five hundred twenty-six million, six hundred thirty-six thousand, two hundred one".