225502743 has 4 divisors (see below), whose sum is σ = 300670328. Its totient is φ = 150335160.

The previous prime is 225502727. The next prime is 225502789. The reversal of 225502743 is 347205522.

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

It is not a de Polignac number, because 225502743 - 2⁴ = 225502727 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 225502743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225502703) 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, 37583788 + ... + 37583793.

It is an arithmetic number, because the mean of its divisors is an integer number (75167582).

Almost surely, 2^225502743 is an apocalyptic number.

225502743 is a deficient number, since it is larger than the sum of its proper divisors (75167585).

225502743 is an equidigital number, since it uses as much as digits as its factorization.

225502743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75167584.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 225502743 is about 15016.7487493132. The cubic root of 225502743 is about 608.6728676832.

The spelling of 225502743 in words is "two hundred twenty-five million, five hundred two thousand, seven hundred forty-three".