55545243 has 8 divisors (see below), whose sum is σ = 79757328. Its totient is φ = 34181664.

The previous prime is 55545241. The next prime is 55545271. The reversal of 55545243 is 34254555.

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

It is not a de Polignac number, because 55545243 - 2¹ = 55545241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55545241) 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, 712080 + ... + 712157.

It is an arithmetic number, because the mean of its divisors is an integer number (9969666).

Almost surely, 2^55545243 is an apocalyptic number.

55545243 is a deficient number, since it is larger than the sum of its proper divisors (24212085).

55545243 is a wasteful number, since it uses less digits than its factorization.

55545243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424253.

The product of its digits is 60000, while the sum is 33.

The square root of 55545243 is about 7452.8681056356. The cubic root of 55545243 is about 381.5478028650.

Adding to 55545243 its reverse (34254555), we get a palindrome (89799798).

The spelling of 55545243 in words is "fifty-five million, five hundred forty-five thousand, two hundred forty-three".