55224245 has 8 divisors (see below), whose sum is σ = 70167384. Its totient is φ = 41580544.

The previous prime is 55224227. The next prime is 55224259. The reversal of 55224245 is 54242255.

It can be written as a sum of positive squares in 4 ways, for example, as 4401604 + 50822641 = 2098^2 + 7129^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55224245 - 2⁶ = 55224181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324764 + ... + 324933.

It is an arithmetic number, because the mean of its divisors is an integer number (8770923).

Almost surely, 2^55224245 is an apocalyptic number.

It is an amenable number.

55224245 is a deficient number, since it is larger than the sum of its proper divisors (14943139).

55224245 is a wasteful number, since it uses less digits than its factorization.

55224245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649719.

The product of its digits is 16000, while the sum is 29.

The square root of 55224245 is about 7431.3017029320. The cubic root of 55224245 is about 380.8113895278.

The spelling of 55224245 in words is "fifty-five million, two hundred twenty-four thousand, two hundred forty-five".