225552533 has 2 divisors, whose sum is σ = 225552534. Its totient is φ = 225552532.

The previous prime is 225552529. The next prime is 225552541. The reversal of 225552533 is 335255522.

It is a happy number.

225552533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223263364 + 2289169 = 14942^2 + 1513^2 .

It is a cyclic number.

It is not a de Polignac number, because 225552533 - 2² = 225552529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225552533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225552233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112776266 + 112776267.

It is an arithmetic number, because the mean of its divisors is an integer number (112776267).

Almost surely, 2^225552533 is an apocalyptic number.

It is an amenable number.

225552533 is a deficient number, since it is larger than the sum of its proper divisors (1).

225552533 is an equidigital number, since it uses as much as digits as its factorization.

225552533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45000, while the sum is 32.

The square root of 225552533 is about 15018.4064733912. The cubic root of 225552533 is about 608.7176618048.

It can be divided in two parts, 22 and 5552533, that added together give a palindrome (5552555).

The spelling of 225552533 in words is "two hundred twenty-five million, five hundred fifty-two thousand, five hundred thirty-three".