55744238 has 8 divisors (see below), whose sum is σ = 91217880. Its totient is φ = 25338280.

The previous prime is 55744229. The next prime is 55744243. The reversal of 55744238 is 83244755.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1266893 + ... + 1266936.

It is an arithmetic number, because the mean of its divisors is an integer number (11402235).

Almost surely, 2^55744238 is an apocalyptic number.

55744238 is a deficient number, since it is larger than the sum of its proper divisors (35473642).

55744238 is a wasteful number, since it uses less digits than its factorization.

55744238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2533842.

The product of its digits is 134400, while the sum is 38.

The square root of 55744238 is about 7466.2063995044. The cubic root of 55744238 is about 382.0029010315.

The spelling of 55744238 in words is "fifty-five million, seven hundred forty-four thousand, two hundred thirty-eight".