23225440033 has 4 divisors (see below), whose sum is σ = 23974647808. Its totient is φ = 22476232260.

The previous prime is 23225440019. The next prime is 23225440061. The reversal of 23225440033 is 33004452232.

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 a de Polignac number, because none of the positive numbers 2^k-23225440033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23225439983 and 23225440010.

It is not an unprimeable number, because it can be changed into a prime (23225440333) 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, 374603841 + ... + 374603902.

It is an arithmetic number, because the mean of its divisors is an integer number (5993661952).

Almost surely, 2^23225440033 is an apocalyptic number.

It is an amenable number.

23225440033 is a deficient number, since it is larger than the sum of its proper divisors (749207775).

23225440033 is an equidigital number, since it uses as much as digits as its factorization.

23225440033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749207774.

The product of its (nonzero) digits is 17280, while the sum is 28.

Adding to 23225440033 its reverse (33004452232), we get a palindrome (56229892265).

The spelling of 23225440033 in words is "twenty-three billion, two hundred twenty-five million, four hundred forty thousand, thirty-three".