225232471 has 2 divisors, whose sum is σ = 225232472. Its totient is φ = 225232470.

The previous prime is 225232463. The next prime is 225232489. The reversal of 225232471 is 174232522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225232471 - 2³ = 225232463 is a prime.

It is a super-3 number, since 3×225232471³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225232421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112616235 + 112616236.

It is an arithmetic number, because the mean of its divisors is an integer number (112616236).

Almost surely, 2^225232471 is an apocalyptic number.

225232471 is a deficient number, since it is larger than the sum of its proper divisors (1).

225232471 is an equidigital number, since it uses as much as digits as its factorization.

225232471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 28.

The square root of 225232471 is about 15007.7470327828. The cubic root of 225232471 is about 608.4295993941.

Adding to 225232471 its reverse (174232522), we get a palindrome (399464993).

The spelling of 225232471 in words is "two hundred twenty-five million, two hundred thirty-two thousand, four hundred seventy-one".