225400543 has 4 divisors (see below), whose sum is σ = 226005208. Its totient is φ = 224795880.

The previous prime is 225400541. The next prime is 225400561. The reversal of 225400543 is 345004522.

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 225400543 - 2¹ = 225400541 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 (225400541) 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, 301773 + ... + 302518.

It is an arithmetic number, because the mean of its divisors is an integer number (56501302).

Almost surely, 2^225400543 is an apocalyptic number.

225400543 is a deficient number, since it is larger than the sum of its proper divisors (604665).

225400543 is an equidigital number, since it uses as much as digits as its factorization.

225400543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604664.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 225400543 is about 15013.3454965907. The cubic root of 225400543 is about 608.5809016667.

The spelling of 225400543 in words is "two hundred twenty-five million, four hundred thousand, five hundred forty-three".