55250330 has 16 divisors (see below), whose sum is σ = 99614664. Its totient is φ = 22063680.

The previous prime is 55250291. The next prime is 55250353. The reversal of 55250330 is 3305255.

It is a happy number.

55250330 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 4 ways, for example, as 46063369 + 9186961 = 6787^2 + 3031^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55250296 and 55250305.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2300 + ... + 10760.

Almost surely, 2^55250330 is an apocalyptic number.

55250330 is a deficient number, since it is larger than the sum of its proper divisors (44364334).

55250330 is a wasteful number, since it uses less digits than its factorization.

55250330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9121.

The product of its (nonzero) digits is 2250, while the sum is 23.

The square root of 55250330 is about 7433.0565718283. The cubic root of 55250330 is about 380.8713384475.

Adding to 55250330 its reverse (3305255), we get a palindrome (58555585).

The spelling of 55250330 in words is "fifty-five million, two hundred fifty thousand, three hundred thirty".