225618453 has 12 divisors (see below), whose sum is σ = 337963808. Its totient is φ = 150412140.

The previous prime is 225618451. The next prime is 225618461. The reversal of 225618453 is 354816522.

225618453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 225618453 - 2¹ = 225618451 is a prime.

It is a super-2 number, since 2×225618453² = 101807372668226418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225618451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 463993 + ... + 464478.

Almost surely, 2^225618453 is an apocalyptic number.

It is an amenable number.

225618453 is a deficient number, since it is larger than the sum of its proper divisors (112345355).

225618453 is an frugal number, since it uses more digits than its factorization.

225618453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928486 (or 928474 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 225618453 is about 15020.6009533574. The cubic root of 225618453 is about 608.7769573182.

The spelling of 225618453 in words is "two hundred twenty-five million, six hundred eighteen thousand, four hundred fifty-three".