55911456 has 72 divisors (see below), whose sum is σ = 160982640. Its totient is φ = 18404736.

The previous prime is 55911437. The next prime is 55911469. The reversal of 55911456 is 65411955.

55911456 is a `hidden beast` number, since 5 + 591 + 14 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a self number, because there is not a number n which added to its sum of digits gives 55911456.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22735 + ... + 25073.

It is an arithmetic number, because the mean of its divisors is an integer number (2235870).

Almost surely, 2^55911456 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 55911456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80491320).

55911456 is an abundant number, since it is smaller than the sum of its proper divisors (105071184).

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

55911456 is a wasteful number, since it uses less digits than its factorization.

55911456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2438 (or 2427 counting only the distinct ones).

The product of its digits is 27000, while the sum is 36.

The square root of 55911456 is about 7477.3963382985. The cubic root of 55911456 is about 382.3844890215.

The spelling of 55911456 in words is "fifty-five million, nine hundred eleven thousand, four hundred fifty-six".