55252443 has 4 divisors (see below), whose sum is σ = 73669928. Its totient is φ = 36834960.

The previous prime is 55252441. The next prime is 55252469. The reversal of 55252443 is 34425255.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55252443 - 2¹ = 55252441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55252443.

It is not an unprimeable number, because it can be changed into a prime (55252441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9208738 + ... + 9208743.

It is an arithmetic number, because the mean of its divisors is an integer number (18417482).

Almost surely, 2^55252443 is an apocalyptic number.

55252443 is a deficient number, since it is larger than the sum of its proper divisors (18417485).

55252443 is a wasteful number, since it uses less digits than its factorization.

55252443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18417484.

The product of its digits is 24000, while the sum is 30.

The square root of 55252443 is about 7433.1987058063. The cubic root of 55252443 is about 380.8761937481.

Adding to 55252443 its reverse (34425255), we get a palindrome (89677698).

The spelling of 55252443 in words is "fifty-five million, two hundred fifty-two thousand, four hundred forty-three".