12505542233 has 4 divisors (see below), whose sum is σ = 12506811408. Its totient is φ = 12504273060.

The previous prime is 12505542191. The next prime is 12505542253. The reversal of 12505542233 is 33224550521.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33224550521 = 51673 ⋅642977.

It is a cyclic number.

It is not a de Polignac number, because 12505542233 - 2²⁰ = 12504493657 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 12505542233.

It is not an unprimeable number, because it can be changed into a prime (12505542253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 619691 + ... + 639552.

It is an arithmetic number, because the mean of its divisors is an integer number (3126702852).

Almost surely, 2^12505542233 is an apocalyptic number.

It is an amenable number.

12505542233 is a deficient number, since it is larger than the sum of its proper divisors (1269175).

12505542233 is an equidigital number, since it uses as much as digits as its factorization.

12505542233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269174.

The product of its (nonzero) digits is 36000, while the sum is 32.

The spelling of 12505542233 in words is "twelve billion, five hundred five million, five hundred forty-two thousand, two hundred thirty-three".