225401 has 8 divisors (see below), whose sum is σ = 254208. Its totient is φ = 198000.

The previous prime is 225383. The next prime is 225427. The reversal of 225401 is 104522.

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

It is a de Polignac number, because none of the positive numbers 2^k-225401 is a prime.

It is a super-2 number, since 2×225401² = 101611221602, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 225401.

It is not an unprimeable number, because it can be changed into a prime (225431) 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, 11 + ... + 671.

It is an arithmetic number, because the mean of its divisors is an integer number (31776).

2²²⁵⁴⁰¹ is an apocalyptic number.

It is an amenable number.

225401 is a deficient number, since it is larger than the sum of its proper divisors (28807).

225401 is a wasteful number, since it uses less digits than its factorization.

225401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 225401 is about 474.7641519744. The cubic root of 225401 is about 60.8581312966.

Adding to 225401 its reverse (104522), we get a palindrome (329923).

It can be divided in two parts, 225 and 401, that added together give a palindrome (626).

The spelling of 225401 in words is "two hundred twenty-five thousand, four hundred one".