55071744 has 176 divisors, whose sum is σ = 181577088. Its totient is φ = 14450688.

The previous prime is 55071743. The next prime is 55071749. The reversal of 55071744 is 44717055.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55071743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279454 + ... + 279650.

It is an arithmetic number, because the mean of its divisors is an integer number (1031688).

Almost surely, 2^55071744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55071744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90788544).

55071744 is an abundant number, since it is smaller than the sum of its proper divisors (126505344).

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

55071744 is a wasteful number, since it uses less digits than its factorization.

55071744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 55071744 is about 7421.0338902339. The cubic root of 55071744 is about 380.4605312116.

Adding to 55071744 its reverse (44717055), we get a palindrome (99788799).

The spelling of 55071744 in words is "fifty-five million, seventy-one thousand, seven hundred forty-four".