55224311 has 8 divisors (see below), whose sum is σ = 57736800. Its totient is φ = 52721152.

The previous prime is 55224307. The next prime is 55224319. The reversal of 55224311 is 11342255.

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

It is not a de Polignac number, because 55224311 - 2² = 55224307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55224319) 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 7 ways as a sum of consecutive naturals, for example, 11615 + ... + 15663.

It is an arithmetic number, because the mean of its divisors is an integer number (7217100).

Almost surely, 2^55224311 is an apocalyptic number.

55224311 is a deficient number, since it is larger than the sum of its proper divisors (2512489).

55224311 is a wasteful number, since it uses less digits than its factorization.

55224311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4665.

The product of its digits is 1200, while the sum is 23.

The square root of 55224311 is about 7431.3061436063. The cubic root of 55224311 is about 380.8115412338.

Adding to 55224311 its reverse (11342255), we get a palindrome (66566566).

The spelling of 55224311 in words is "fifty-five million, two hundred twenty-four thousand, three hundred eleven".