225437 has 8 divisors (see below), whose sum is σ = 243000. Its totient is φ = 208384.

The previous prime is 225431. The next prime is 225457. The reversal of 225437 is 734522.

It can be written as a sum of positive squares in 4 ways, for example, as 5476 + 219961 = 74^2 + 469^2 .

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 225437 - 2⁶ = 225373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 225437.

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, 1439 + ... + 1587.

It is an arithmetic number, because the mean of its divisors is an integer number (30375).

2²²⁵⁴³⁷ is an apocalyptic number.

It is an amenable number.

225437 is a deficient number, since it is larger than the sum of its proper divisors (17563).

225437 is a wasteful number, since it uses less digits than its factorization.

225437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255.

The product of its digits is 1680, while the sum is 23.

The square root of 225437 is about 474.8020640225. The cubic root of 225437 is about 60.8613711167.

Adding to 225437 its reverse (734522), we get a palindrome (959959).

The spelling of 225437 in words is "two hundred twenty-five thousand, four hundred thirty-seven".