225553507 has 2 divisors, whose sum is σ = 225553508. Its totient is φ = 225553506.

The previous prime is 225553487. The next prime is 225553511. The reversal of 225553507 is 705355522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225553507 - 2⁷ = 225553379 is a prime.

It is not a weakly prime, because it can be changed into another prime (225553607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112776753 + 112776754.

It is an arithmetic number, because the mean of its divisors is an integer number (112776754).

Almost surely, 2^225553507 is an apocalyptic number.

225553507 is a deficient number, since it is larger than the sum of its proper divisors (1).

225553507 is an equidigital number, since it uses as much as digits as its factorization.

225553507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52500, while the sum is 34.

The square root of 225553507 is about 15018.4389002319. The cubic root of 225553507 is about 608.7185380089.

It can be divided in two parts, 22555 and 3507, that added together give a palindrome (26062).

The spelling of 225553507 in words is "two hundred twenty-five million, five hundred fifty-three thousand, five hundred seven".