55623433 has 4 divisors (see below), whose sum is σ = 55660240. Its totient is φ = 55586628.

The previous prime is 55623409. The next prime is 55623437. The reversal of 55623433 is 33432655.

It is a happy number.

55623433 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55623433 - 2⁵ = 55623401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55623395 and 55623404.

It is not an unprimeable number, because it can be changed into a prime (55623437) 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, 16035 + ... + 19192.

It is an arithmetic number, because the mean of its divisors is an integer number (13915060).

Almost surely, 2^55623433 is an apocalyptic number.

It is an amenable number.

55623433 is a deficient number, since it is larger than the sum of its proper divisors (36807).

55623433 is a wasteful number, since it uses less digits than its factorization.

55623433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36806.

The product of its digits is 32400, while the sum is 31.

The square root of 55623433 is about 7458.1118924296. Note that the first 3 decimals coincide. The cubic root of 55623433 is about 381.7267514930.

The spelling of 55623433 in words is "fifty-five million, six hundred twenty-three thousand, four hundred thirty-three".