55253225 has 12 divisors (see below), whose sum is σ = 69538704. Its totient is φ = 43541520.

The previous prime is 55253221. The next prime is 55253227. The reversal of 55253225 is 52235255.

55253225 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 55253225 - 2² = 55253221 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55253221) 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 11 ways as a sum of consecutive naturals, for example, 14819 + ... + 18168.

It is an arithmetic number, because the mean of its divisors is an integer number (5794892).

Almost surely, 2^55253225 is an apocalyptic number.

It is an amenable number.

55253225 is a deficient number, since it is larger than the sum of its proper divisors (14285479).

55253225 is a wasteful number, since it uses less digits than its factorization.

55253225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33064 (or 33059 counting only the distinct ones).

The product of its digits is 15000, while the sum is 29.

The square root of 55253225 is about 7433.2513074697. The cubic root of 55253225 is about 380.8779906145.

The spelling of 55253225 in words is "fifty-five million, two hundred fifty-three thousand, two hundred twenty-five".