57550225 has 6 divisors (see below), whose sum is σ = 71362310. Its totient is φ = 46040160.

The previous prime is 57550223. The next prime is 57550237. The reversal of 57550225 is 52205575.

57550225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 154449 + 57395776 = 393^2 + 7576^2 .

It is not a de Polignac number, because 57550225 - 2¹ = 57550223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57550223) 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 5 ways as a sum of consecutive naturals, for example, 1150980 + ... + 1151029.

Almost surely, 2^57550225 is an apocalyptic number.

It is an amenable number.

57550225 is a deficient number, since it is larger than the sum of its proper divisors (13812085).

57550225 is a wasteful number, since it uses less digits than its factorization.

57550225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302019 (or 2302014 counting only the distinct ones).

The product of its (nonzero) digits is 17500, while the sum is 31.

The square root of 57550225 is about 7586.1864596120. The cubic root of 57550225 is about 386.0844781857.

It can be divided in two parts, 57550 and 225, that added together give a palindrome (57775).

The spelling of 57550225 in words is "fifty-seven million, five hundred fifty thousand, two hundred twenty-five".