55493856 has 96 divisors (see below), whose sum is σ = 176601600. Its totient is φ = 16813440.

The previous prime is 55493833. The next prime is 55493857. The reversal of 55493856 is 65839455.

55493856 is a `hidden beast` number, since 554 + 93 + 8 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55493857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6585 + ... + 12423.

It is an arithmetic number, because the mean of its divisors is an integer number (1839600).

Almost surely, 2^55493856 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 55493856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88300800).

55493856 is an abundant number, since it is smaller than the sum of its proper divisors (121107744).

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

55493856 is a wasteful number, since it uses less digits than its factorization.

55493856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5869 (or 5855 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 55493856 is about 7449.4198431824. The cubic root of 55493856 is about 381.4301051393.

The spelling of 55493856 in words is "fifty-five million, four hundred ninety-three thousand, eight hundred fifty-six".