225421046 has 8 divisors (see below), whose sum is σ = 338821704. Its totient is φ = 112480480.

The previous prime is 225421043. The next prime is 225421067. The reversal of 225421046 is 640124522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225421043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113795 + ... + 115758.

It is an arithmetic number, because the mean of its divisors is an integer number (42352713).

Almost surely, 2^225421046 is an apocalyptic number.

225421046 is a deficient number, since it is larger than the sum of its proper divisors (113400658).

225421046 is a wasteful number, since it uses less digits than its factorization.

225421046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230046.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 225421046 is about 15014.0283068869. The cubic root of 225421046 is about 608.5993537901.

Adding to 225421046 its reverse (640124522), we get a palindrome (865545568).

The spelling of 225421046 in words is "two hundred twenty-five million, four hundred twenty-one thousand, forty-six".