55244245 has 8 divisors (see below), whose sum is σ = 75763584. Its totient is φ = 37881744.

The previous prime is 55244239. The next prime is 55244249. The reversal of 55244245 is 54244255.

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 55244245 - 2⁵ = 55244213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55244249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 789169 + ... + 789238.

It is an arithmetic number, because the mean of its divisors is an integer number (9470448).

Almost surely, 2^55244245 is an apocalyptic number.

It is an amenable number.

55244245 is a deficient number, since it is larger than the sum of its proper divisors (20519339).

55244245 is a wasteful number, since it uses less digits than its factorization.

55244245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578419.

The product of its digits is 32000, while the sum is 31.

The square root of 55244245 is about 7432.6472403848. The cubic root of 55244245 is about 380.8573555013.

The spelling of 55244245 in words is "fifty-five million, two hundred forty-four thousand, two hundred forty-five".