225554431 has 8 divisors (see below), whose sum is σ = 233578800. Its totient is φ = 217546560.

The previous prime is 225554429. The next prime is 225554449. The reversal of 225554431 is 134455522.

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 225554431 - 2¹ = 225554429 is a prime.

It is a super-2 number, since 2×225554431² = 101749602687467522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225554393 and 225554402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225554411) 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, 28075 + ... + 35203.

It is an arithmetic number, because the mean of its divisors is an integer number (29197350).

Almost surely, 2^225554431 is an apocalyptic number.

225554431 is a deficient number, since it is larger than the sum of its proper divisors (8024369).

225554431 is a wasteful number, since it uses less digits than its factorization.

225554431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8249.

The product of its digits is 24000, while the sum is 31.

The square root of 225554431 is about 15018.4696623857. The cubic root of 225554431 is about 608.7193692309.

The spelling of 225554431 in words is "two hundred twenty-five million, five hundred fifty-four thousand, four hundred thirty-one".