225554123 has 4 divisors (see below), whose sum is σ = 235360848. Its totient is φ = 215747400.

The previous prime is 225554117. The next prime is 225554179. The reversal of 225554123 is 321455522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321455522 = 2 ⋅160727761.

It is a cyclic number.

It is not a de Polignac number, because 225554123 - 2²⁴ = 208776907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225554423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4903328 + ... + 4903373.

It is an arithmetic number, because the mean of its divisors is an integer number (58840212).

Almost surely, 2^225554123 is an apocalyptic number.

225554123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

225554123 is a deficient number, since it is larger than the sum of its proper divisors (9806725).

225554123 is an equidigital number, since it uses as much as digits as its factorization.

225554123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9806724.

The product of its digits is 12000, while the sum is 29.

The square root of 225554123 is about 15018.4594083415. The cubic root of 225554123 is about 608.7190921572.

The spelling of 225554123 in words is "two hundred twenty-five million, five hundred fifty-four thousand, one hundred twenty-three".