225623953 has 2 divisors, whose sum is σ = 225623954. Its totient is φ = 225623952.

The previous prime is 225623941. The next prime is 225623971. The reversal of 225623953 is 359326522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200703889 + 24920064 = 14167^2 + 4992^2 .

It is a cyclic number.

It is not a de Polignac number, because 225623953 - 2⁹ = 225623441 is a prime.

It is not a weakly prime, because it can be changed into another prime (225623753) 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 as a sum of consecutive naturals, namely, 112811976 + 112811977.

It is an arithmetic number, because the mean of its divisors is an integer number (112811977).

Almost surely, 2^225623953 is an apocalyptic number.

It is an amenable number.

225623953 is a deficient number, since it is larger than the sum of its proper divisors (1).

225623953 is an equidigital number, since it uses as much as digits as its factorization.

225623953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 37.

The square root of 225623953 is about 15020.7840341308. The cubic root of 225623953 is about 608.7819040857.

It can be divided in two parts, 225623 and 953, that added together give a square (226576 = 476²).

The spelling of 225623953 in words is "two hundred twenty-five million, six hundred twenty-three thousand, nine hundred fifty-three".