225421330 has 8 divisors (see below), whose sum is σ = 405758412. Its totient is φ = 90168528.

The previous prime is 225421303. The next prime is 225421331. The reversal of 225421330 is 33124522.

225421330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 223113969 + 2307361 = 14937^2 + 1519^2 .

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

It is not an unprimeable number, because it can be changed into a prime (225421331) 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, 11271057 + ... + 11271076.

Almost surely, 2^225421330 is an apocalyptic number.

225421330 is a deficient number, since it is larger than the sum of its proper divisors (180337082).

225421330 is a wasteful number, since it uses less digits than its factorization.

225421330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22542140.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 225421330 is about 15014.0377647054. The cubic root of 225421330 is about 608.5996093742.

Adding to 225421330 its reverse (33124522), we get a palindrome (258545852).

The spelling of 225421330 in words is "two hundred twenty-five million, four hundred twenty-one thousand, three hundred thirty".