55223942 has 8 divisors (see below), whose sum is σ = 84002832. Its totient is φ = 27223000.

The previous prime is 55223929. The next prime is 55223947. The reversal of 55223942 is 24932255.

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

It is a junction number, because it is equal to n+sod(n) for n = 55223899 and 55223908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55223947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194309 + ... + 194592.

It is an arithmetic number, because the mean of its divisors is an integer number (10500354).

Almost surely, 2^55223942 is an apocalyptic number.

55223942 is a deficient number, since it is larger than the sum of its proper divisors (28778890).

55223942 is a wasteful number, since it uses less digits than its factorization.

55223942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388974.

The product of its digits is 21600, while the sum is 32.

The square root of 55223942 is about 7431.2813161661. The cubic root of 55223942 is about 380.8106930580.

It can be divided in two parts, 55223 and 942, that added together give a palindrome (56165).

The spelling of 55223942 in words is "fifty-five million, two hundred twenty-three thousand, nine hundred forty-two".