55115744 has 24 divisors (see below), whose sum is σ = 108718848. Its totient is φ = 27504640.

The previous prime is 55115743. The next prime is 55115773. The reversal of 55115744 is 44751155.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 55115744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55115743) 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, 19169 + ... + 21855.

It is an arithmetic number, because the mean of its divisors is an integer number (4529952).

Almost surely, 2^55115744 is an apocalyptic number.

It is an amenable number.

55115744 is a deficient number, since it is larger than the sum of its proper divisors (53603104).

55115744 is a wasteful number, since it uses less digits than its factorization.

55115744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3338 (or 3330 counting only the distinct ones).

The product of its digits is 14000, while the sum is 32.

The square root of 55115744 is about 7423.9978448273. The cubic root of 55115744 is about 380.5618282100.

Adding to 55115744 its sum of digits (32), we get a square (55115776 = 7424²).

Adding to 55115744 its reverse (44751155), we get a palindrome (99866899).

The spelling of 55115744 in words is "fifty-five million, one hundred fifteen thousand, seven hundred forty-four".