225435 has 32 divisors (see below), whose sum is σ = 437760. Its totient is φ = 96768.

The previous prime is 225431. The next prime is 225457. The reversal of 225435 is 534522.

It is not a de Polignac number, because 225435 - 2² = 225431 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

225435 is a lucky 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 225435.

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 31 ways as a sum of consecutive naturals, for example, 1939 + ... + 2051.

It is an arithmetic number, because the mean of its divisors is an integer number (13680).

2²²⁵⁴³⁵ is an apocalyptic number.

225435 is a deficient number, since it is larger than the sum of its proper divisors (212325).

225435 is a wasteful number, since it uses less digits than its factorization.

225435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147.

The product of its digits is 1200, while the sum is 21.

The square root of 225435 is about 474.7999578770. The cubic root of 225435 is about 60.8611911358.

Adding to 225435 its sum of digits (21), we get a triangular number (225456 = T₆₇₁).

Adding to 225435 its reverse (534522), we get a palindrome (759957).

The spelling of 225435 in words is "two hundred twenty-five thousand, four hundred thirty-five".