55445243 has 8 divisors (see below), whose sum is σ = 64911840. Its totient is φ = 46365120.

The previous prime is 55445239. The next prime is 55445311. The reversal of 55445243 is 34254455.

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 55445243 - 2² = 55445239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55445213) 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, 96308 + ... + 96881.

It is an arithmetic number, because the mean of its divisors is an integer number (8113980).

Almost surely, 2^55445243 is an apocalyptic number.

55445243 is a deficient number, since it is larger than the sum of its proper divisors (9466597).

55445243 is a wasteful number, since it uses less digits than its factorization.

55445243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193237.

The product of its digits is 48000, while the sum is 32.

The square root of 55445243 is about 7446.1562567542. The cubic root of 55445243 is about 381.3186941344.

Adding to 55445243 its reverse (34254455), we get a palindrome (89699698).

The spelling of 55445243 in words is "fifty-five million, four hundred forty-five thousand, two hundred forty-three".