55317744 has 30 divisors (see below), whose sum is σ = 154813256. Its totient is φ = 18439200.

The previous prime is 55317719. The next prime is 55317749. The reversal of 55317744 is 44771355.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 55317699 and 55317708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55317749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 191932 + ... + 192219.

Almost surely, 2^55317744 is an apocalyptic number.

It is an amenable number.

55317744 is an abundant number, since it is smaller than the sum of its proper divisors (99495512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55317744 is a wasteful number, since it uses less digits than its factorization.

55317744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384165 (or 384156 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 55317744 is about 7437.5899322294. The cubic root of 55317744 is about 381.0261829197.

The spelling of 55317744 in words is "fifty-five million, three hundred seventeen thousand, seven hundred forty-four".