55233923 has 4 divisors (see below), whose sum is σ = 55655688. Its totient is φ = 54812160.

The previous prime is 55233907. The next prime is 55233947. The reversal of 55233923 is 32933255.

55233923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 55233923 - 2⁴ = 55233907 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 55233923.

It is not an unprimeable number, because it can be changed into a prime (55233623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210686 + ... + 210947.

It is an arithmetic number, because the mean of its divisors is an integer number (13913922).

Almost surely, 2^55233923 is an apocalyptic number.

55233923 is a deficient number, since it is larger than the sum of its proper divisors (421765).

55233923 is a wasteful number, since it uses less digits than its factorization.

55233923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421764.

The product of its digits is 24300, while the sum is 32.

The square root of 55233923 is about 7431.9528389246. The cubic root of 55233923 is about 380.8336338479.

The spelling of 55233923 in words is "fifty-five million, two hundred thirty-three thousand, nine hundred twenty-three".