225045479 has 2 divisors, whose sum is σ = 225045480. Its totient is φ = 225045478.

The previous prime is 225045467. The next prime is 225045517. The reversal of 225045479 is 974540522.

It is an a-pointer prime, because the next prime (225045517) can be obtained adding 225045479 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225045479 - 2⁴ = 225045463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225045449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112522739 + 112522740.

It is an arithmetic number, because the mean of its divisors is an integer number (112522740).

Almost surely, 2^225045479 is an apocalyptic number.

225045479 is a deficient number, since it is larger than the sum of its proper divisors (1).

225045479 is an equidigital number, since it uses as much as digits as its factorization.

225045479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 225045479 is about 15001.5158900692. The cubic root of 225045479 is about 608.2611764210.

The spelling of 225045479 in words is "two hundred twenty-five million, forty-five thousand, four hundred seventy-nine".