252225533 has 4 divisors (see below), whose sum is σ = 288257760. Its totient is φ = 216193308.

The previous prime is 252225509. The next prime is 252225577. The reversal of 252225533 is 335522252.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 252225533 - 2⁶ = 252225469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 252225496 and 252225505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252225503) 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 in 3 ways as a sum of consecutive naturals, for example, 18016103 + ... + 18016116.

It is an arithmetic number, because the mean of its divisors is an integer number (72064440).

Almost surely, 2^252225533 is an apocalyptic number.

It is an amenable number.

252225533 is a deficient number, since it is larger than the sum of its proper divisors (36032227).

252225533 is an equidigital number, since it uses as much as digits as its factorization.

252225533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36032226.

The product of its digits is 18000, while the sum is 29.

The square root of 252225533 is about 15881.6098995033. The cubic root of 252225533 is about 631.8243357926.

Adding to 252225533 its reverse (335522252), we get a palindrome (587747785).

It can be divided in two parts, 2522 and 25533, that multiplied together give a triangular number (64394226 = T₁₁₃₄₈).

The spelling of 252225533 in words is "two hundred fifty-two million, two hundred twenty-five thousand, five hundred thirty-three".