55323273 has 4 divisors (see below), whose sum is σ = 73764368. Its totient is φ = 36882180.

The previous prime is 55323263. The next prime is 55323283. The reversal of 55323273 is 37232355.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (55323263) and next prime (55323283).

It is not a de Polignac number, because 55323273 - 2⁶ = 55323209 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 55323273.

It is not an unprimeable number, because it can be changed into a prime (55323263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9220543 + ... + 9220548.

It is an arithmetic number, because the mean of its divisors is an integer number (18441092).

Almost surely, 2^55323273 is an apocalyptic number.

It is an amenable number.

55323273 is a deficient number, since it is larger than the sum of its proper divisors (18441095).

55323273 is a wasteful number, since it uses less digits than its factorization.

55323273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18441094.

The product of its digits is 18900, while the sum is 30.

The square root of 55323273 is about 7437.9616159268. The cubic root of 55323273 is about 381.0388769995.

The spelling of 55323273 in words is "fifty-five million, three hundred twenty-three thousand, two hundred seventy-three".