12545452033 has 4 divisors (see below), whose sum is σ = 12548007360. Its totient is φ = 12542896708.

The previous prime is 12545452021. The next prime is 12545452043. The reversal of 12545452033 is 33025454521.

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-12545452033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12545452033.

It is not an unprimeable number, because it can be changed into a prime (12545452043) 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, 1270285 + ... + 1280122.

It is an arithmetic number, because the mean of its divisors is an integer number (3137001840).

Almost surely, 2^12545452033 is an apocalyptic number.

It is an amenable number.

12545452033 is a deficient number, since it is larger than the sum of its proper divisors (2555327).

12545452033 is an equidigital number, since it uses as much as digits as its factorization.

12545452033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555326.

The product of its (nonzero) digits is 72000, while the sum is 34.

The spelling of 12545452033 in words is "twelve billion, five hundred forty-five million, four hundred fifty-two thousand, thirty-three".