225302543 has 4 divisors (see below), whose sum is σ = 225571920. Its totient is φ = 225033168.

The previous prime is 225302531. The next prime is 225302569. The reversal of 225302543 is 345203522.

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 225302543 - 2⁴ = 225302527 is a prime.

It is a super-2 number, since 2×225302543² = 101522471764533698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225302573) 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, 133430 + ... + 135107.

It is an arithmetic number, because the mean of its divisors is an integer number (56392980).

Almost surely, 2^225302543 is an apocalyptic number.

225302543 is a deficient number, since it is larger than the sum of its proper divisors (269377).

225302543 is an equidigital number, since it uses as much as digits as its factorization.

225302543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269376.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 225302543 is about 15010.0813788600. The cubic root of 225302543 is about 608.4926889628.

The spelling of 225302543 in words is "two hundred twenty-five million, three hundred two thousand, five hundred forty-three".