225643344453 has 96 divisors (see below), whose sum is σ = 369998254080. Its totient is φ = 131802992640.

The previous prime is 225643344427. The next prime is 225643344461. The reversal of 225643344453 is 354443346522.

225643344453 is a `hidden beast` number, since 2 + 2 + 564 + 3 + 3 + 44 + 45 + 3 = 666.

It is not a de Polignac number, because 225643344453 - 2¹⁸ = 225643082309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225643344399 and 225643344408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225643344403) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15611476 + ... + 15625922.

It is an arithmetic number, because the mean of its divisors is an integer number (3854148480).

Almost surely, 2^225643344453 is an apocalyptic number.

It is an amenable number.

225643344453 is a deficient number, since it is larger than the sum of its proper divisors (144354909627).

225643344453 is a wasteful number, since it uses less digits than its factorization.

225643344453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14627 (or 14624 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 45.

The spelling of 225643344453 in words is "two hundred twenty-five billion, six hundred forty-three million, three hundred forty-four thousand, four hundred fifty-three".