12445433253 has 48 divisors (see below), whose sum is σ = 20827138176. Its totient is φ = 7077611520.

The previous prime is 12445433243. The next prime is 12445433267. The reversal of 12445433253 is 35233454421.

12445433253 is a `hidden beast` number, since 124 + 454 + 3 + 32 + 53 = 666.

It is not a de Polignac number, because 12445433253 - 2²² = 12441238949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12445433243) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 556200 + ... + 578142.

It is an arithmetic number, because the mean of its divisors is an integer number (433898712).

Almost surely, 2^12445433253 is an apocalyptic number.

It is an amenable number.

12445433253 is a deficient number, since it is larger than the sum of its proper divisors (8381704923).

12445433253 is a wasteful number, since it uses less digits than its factorization.

12445433253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22314 (or 22311 counting only the distinct ones).

The product of its digits is 172800, while the sum is 36.

Adding to 12445433253 its reverse (35233454421), we get a palindrome (47678887674).

The spelling of 12445433253 in words is "twelve billion, four hundred forty-five million, four hundred thirty-three thousand, two hundred fifty-three".