225420553 has 2 divisors, whose sum is σ = 225420554. Its totient is φ = 225420552.

The previous prime is 225420551. The next prime is 225420581. The reversal of 225420553 is 355024522.

It is an a-pointer prime, because the next prime (225420581) can be obtained adding 225420553 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183792249 + 41628304 = 13557^2 + 6452^2 .

It is a cyclic number.

It is not a de Polignac number, because 225420553 - 2¹ = 225420551 is a prime.

Together with 225420551, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (225420551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112710276 + 112710277.

It is an arithmetic number, because the mean of its divisors is an integer number (112710277).

Almost surely, 2^225420553 is an apocalyptic number.

It is an amenable number.

225420553 is a deficient number, since it is larger than the sum of its proper divisors (1).

225420553 is an equidigital number, since it uses as much as digits as its factorization.

225420553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 225420553 is about 15014.0118888990. The cubic root of 225420553 is about 608.5989101171.

The spelling of 225420553 in words is "two hundred twenty-five million, four hundred twenty thousand, five hundred fifty-three".