55275243 has 16 divisors (see below), whose sum is σ = 75542016. Its totient is φ = 35935200.

The previous prime is 55275223. The next prime is 55275293. The reversal of 55275243 is 34257255.

It is not a de Polignac number, because 55275243 - 2⁹ = 55274731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55275223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52068 + ... + 53118.

It is an arithmetic number, because the mean of its divisors is an integer number (4721376).

Almost surely, 2^55275243 is an apocalyptic number.

55275243 is a deficient number, since it is larger than the sum of its proper divisors (20266773).

55275243 is a wasteful number, since it uses less digits than its factorization.

55275243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474.

The product of its digits is 42000, while the sum is 33.

The square root of 55275243 is about 7434.7322076858. The cubic root of 55275243 is about 380.9285762464.

The spelling of 55275243 in words is "fifty-five million, two hundred seventy-five thousand, two hundred forty-three".