61122225 has 24 divisors (see below), whose sum is σ = 107002080. Its totient is φ = 30680320.

The previous prime is 61122223. The next prime is 61122239. The reversal of 61122225 is 52222116.

It is a happy number.

61122225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61122225 - 2¹ = 61122223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61122223) 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 in 23 ways as a sum of consecutive naturals, for example, 22695 + ... + 25244.

It is an arithmetic number, because the mean of its divisors is an integer number (4458420).

Almost surely, 2^61122225 is an apocalyptic number.

It is an amenable number.

61122225 is a deficient number, since it is larger than the sum of its proper divisors (45879855).

61122225 is a wasteful number, since it uses less digits than its factorization.

61122225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47969 (or 47964 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 61122225 is about 7818.0704141111. The cubic root of 61122225 is about 393.9124600452.

The spelling of 61122225 in words is "sixty-one million, one hundred twenty-two thousand, two hundred twenty-five".