55324225 has 18 divisors (see below), whose sum is σ = 75409670. Its totient is φ = 40233600.

The previous prime is 55324207. The next prime is 55324271. The reversal of 55324225 is 52242355.

It can be written as a sum of positive squares in 3 ways, for example, as 16834609 + 38489616 = 4103^2 + 6204^2 .

It is not a de Polignac number, because 55324225 - 2⁵ = 55324193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55324193 and 55324202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6120 + ... + 12169.

Almost surely, 2^55324225 is an apocalyptic number.

55324225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55324225 is a deficient number, since it is larger than the sum of its proper divisors (20085445).

55324225 is a wasteful number, since it uses less digits than its factorization.

55324225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18321 (or 18305 counting only the distinct ones).

The product of its digits is 12000, while the sum is 28.

The square root of 55324225 is about 7438.0256116795. The cubic root of 55324225 is about 381.0410626194.

The spelling of 55324225 in words is "fifty-five million, three hundred twenty-four thousand, two hundred twenty-five".