20225025133 has 4 divisors (see below), whose sum is σ = 21289500160. Its totient is φ = 19160550108.

The previous prime is 20225025131. The next prime is 20225025179. The reversal of 20225025133 is 33152052202.

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 20225025133 - 2¹ = 20225025131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20225025098 and 20225025107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20225025131) 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, 532237485 + ... + 532237522.

It is an arithmetic number, because the mean of its divisors is an integer number (5322375040).

Almost surely, 2^20225025133 is an apocalyptic number.

It is an amenable number.

20225025133 is a deficient number, since it is larger than the sum of its proper divisors (1064475027).

20225025133 is a wasteful number, since it uses less digits than its factorization.

20225025133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064475026.

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 20225025133 its reverse (33152052202), we get a palindrome (53377077335).

The spelling of 20225025133 in words is "twenty billion, two hundred twenty-five million, twenty-five thousand, one hundred thirty-three".