61332224 has 18 divisors (see below), whose sum is σ = 122425380. Its totient is φ = 30665984.

The previous prime is 61332223. The next prime is 61332239. The reversal of 61332224 is 42223316.

61332224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61332224.

It is not an unprimeable number, because it can be changed into a prime (61332223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119534 + ... + 120045.

It is an arithmetic number, because the mean of its divisors is an integer number (6801410).

Almost surely, 2^61332224 is an apocalyptic number.

61332224 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

61332224 is a deficient number, since it is larger than the sum of its proper divisors (61093156).

61332224 is an equidigital number, since it uses as much as digits as its factorization.

61332224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239595 (or 239581 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 61332224 is about 7831.4892581169. The cubic root of 61332224 is about 394.3630690088.

The spelling of 61332224 in words is "sixty-one million, three hundred thirty-two thousand, two hundred twenty-four".