73223552 has 16 divisors (see below), whose sum is σ = 145875300. Its totient is φ = 36611712.

The previous prime is 73223551. The next prime is 73223561. The reversal of 73223552 is 25532237.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73223551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285902 + ... + 286157.

Almost surely, 2^73223552 is an apocalyptic number.

It is an amenable number.

73223552 is a deficient number, since it is larger than the sum of its proper divisors (72651748).

73223552 is an equidigital number, since it uses as much as digits as its factorization.

73223552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572073 (or 572061 counting only the distinct ones).

The product of its digits is 12600, while the sum is 29.

The square root of 73223552 is about 8557.0761361577. The cubic root of 73223552 is about 418.3601057276.

Adding to 73223552 its reverse (25532237), we get a palindrome (98755789).

The spelling of 73223552 in words is "seventy-three million, two hundred twenty-three thousand, five hundred fifty-two".