20225759019 has 4 divisors (see below), whose sum is σ = 26967678696. Its totient is φ = 13483839344.

The previous prime is 20225759011. The next prime is 20225759023. The reversal of 20225759019 is 91095752202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20225759019 - 2³ = 20225759011 is a prime.

It is a super-2 number, since 2×20225759019² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20225759011) 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, 3370959834 + ... + 3370959839.

It is an arithmetic number, because the mean of its divisors is an integer number (6741919674).

Almost surely, 2^20225759019 is an apocalyptic number.

20225759019 is a deficient number, since it is larger than the sum of its proper divisors (6741919677).

20225759019 is an equidigital number, since it uses as much as digits as its factorization.

20225759019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6741919676.

The product of its (nonzero) digits is 113400, while the sum is 42.

The spelling of 20225759019 in words is "twenty billion, two hundred twenty-five million, seven hundred fifty-nine thousand, nineteen".