225005743999 has 4 divisors (see below), whose sum is σ = 225008751640. Its totient is φ = 225002736360.

The previous prime is 225005743997. The next prime is 225005744009. The reversal of 225005743999 is 999347500522.

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

It is a cyclic number.

It is not a de Polignac number, because 225005743999 - 2¹ = 225005743997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225005743993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1388664 + ... + 1542205.

It is an arithmetic number, because the mean of its divisors is an integer number (56252187910).

Almost surely, 2^225005743999 is an apocalyptic number.

225005743999 is a deficient number, since it is larger than the sum of its proper divisors (3007641).

225005743999 is an equidigital number, since it uses as much as digits as its factorization.

225005743999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3007640.

The product of its (nonzero) digits is 6123600, while the sum is 55.

The spelling of 225005743999 in words is "two hundred twenty-five billion, five million, seven hundred forty-three thousand, nine hundred ninety-nine".