55230311 has 8 divisors (see below), whose sum is σ = 57250560. Its totient is φ = 53245368.

The previous prime is 55230299. The next prime is 55230319. The reversal of 55230311 is 11303255.

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

It is a cyclic number.

It is not a de Polignac number, because 55230311 - 2⁶ = 55230247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55230319) 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, 5621 + ... + 11918.

It is an arithmetic number, because the mean of its divisors is an integer number (7156320).

Almost surely, 2^55230311 is an apocalyptic number.

55230311 is a deficient number, since it is larger than the sum of its proper divisors (2020249).

55230311 is a wasteful number, since it uses less digits than its factorization.

55230311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17653.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 55230311 is about 7431.7098301804. The cubic root of 55230311 is about 380.8253321799.

Adding to 55230311 its reverse (11303255), we get a palindrome (66533566).

The spelling of 55230311 in words is "fifty-five million, two hundred thirty thousand, three hundred eleven".