23533005449 has 4 divisors (see below), whose sum is σ = 23535577860. Its totient is φ = 23530433040.

The previous prime is 23533005371. The next prime is 23533005467. The reversal of 23533005449 is 94450033532.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14248719424 + 9284286025 = 119368^2 + 96355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23533005449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23533005469) 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, 1272434 + ... + 1290795.

It is an arithmetic number, because the mean of its divisors is an integer number (5883894465).

Almost surely, 2^23533005449 is an apocalyptic number.

It is an amenable number.

23533005449 is a deficient number, since it is larger than the sum of its proper divisors (2572411).

23533005449 is an equidigital number, since it uses as much as digits as its factorization.

23533005449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2572410.

The product of its (nonzero) digits is 194400, while the sum is 38.

The spelling of 23533005449 in words is "twenty-three billion, five hundred thirty-three million, five thousand, four hundred forty-nine".