55442326 has 8 divisors (see below), whose sum is σ = 83346840. Its totient is φ = 27660048.

The previous prime is 55442311. The next prime is 55442327. The reversal of 55442326 is 62324455.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55442327) 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 3 ways as a sum of consecutive naturals, for example, 29416 + ... + 31243.

It is an arithmetic number, because the mean of its divisors is an integer number (10418355).

Almost surely, 2^55442326 is an apocalyptic number.

55442326 is a deficient number, since it is larger than the sum of its proper divisors (27904514).

55442326 is a wasteful number, since it uses less digits than its factorization.

55442326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61118.

The product of its digits is 28800, while the sum is 31.

The square root of 55442326 is about 7445.9603813074. The cubic root of 55442326 is about 381.3120068993.

The spelling of 55442326 in words is "fifty-five million, four hundred forty-two thousand, three hundred twenty-six".