20255133841 has 4 divisors (see below), whose sum is σ = 20278605312. Its totient is φ = 20231662372.

The previous prime is 20255133817. The next prime is 20255133853. The reversal of 20255133841 is 14833155202.

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 20255133841 - 2¹⁷ = 20255002769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20255133797 and 20255133806.

It is not an unprimeable number, because it can be changed into a prime (20255133881) 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, 11734441 + ... + 11736166.

It is an arithmetic number, because the mean of its divisors is an integer number (5069651328).

Almost surely, 2^20255133841 is an apocalyptic number.

It is an amenable number.

20255133841 is a deficient number, since it is larger than the sum of its proper divisors (23471471).

20255133841 is an equidigital number, since it uses as much as digits as its factorization.

20255133841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23471470.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 20255133841 in words is "twenty billion, two hundred fifty-five million, one hundred thirty-three thousand, eight hundred forty-one".