225300444421 has 8 divisors (see below), whose sum is σ = 243494708184. Its totient is φ = 207229532160.

The previous prime is 225300444377. The next prime is 225300444469. The reversal of 225300444421 is 124444003522.

It can be written as a sum of positive squares in 4 ways, for example, as 17100792900 + 208199651521 = 130770^2 + 456289^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 225300444421 - 2²⁵ = 225266889989 is a prime.

It is a super-2 number, since 2×225300444421² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225300444221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30834076 + ... + 30841381.

It is an arithmetic number, because the mean of its divisors is an integer number (30436838523).

Almost surely, 2^225300444421 is an apocalyptic number.

It is an amenable number.

225300444421 is a deficient number, since it is larger than the sum of its proper divisors (18194263763).

225300444421 is a wasteful number, since it uses less digits than its factorization.

225300444421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61675751.

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 225300444421 its reverse (124444003522), we get a palindrome (349744447943).

The spelling of 225300444421 in words is "two hundred twenty-five billion, three hundred million, four hundred forty-four thousand, four hundred twenty-one".