55030023 has 56 divisors (see below), whose sum is σ = 90500400. Its totient is φ = 33312384.

The previous prime is 55030009. The next prime is 55030039. The reversal of 55030023 is 32003055.

55030023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55030023 - 2¹⁷ = 54898951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55029978 and 55030005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55030223) 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 55 ways as a sum of consecutive naturals, for example, 401611 + ... + 401747.

Almost surely, 2^55030023 is an apocalyptic number.

55030023 is a deficient number, since it is larger than the sum of its proper divisors (35470377).

55030023 is a wasteful number, since it uses less digits than its factorization.

55030023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

The square root of 55030023 is about 7418.2223611860. Note that the first 3 decimals coincide. The cubic root of 55030023 is about 380.3644310900.

Adding to 55030023 its reverse (32003055), we get a palindrome (87033078).

The spelling of 55030023 in words is "fifty-five million, thirty thousand, twenty-three".