54215056 has 80 divisors (see below), whose sum is σ = 128464000. Its totient is φ = 21648384.

The previous prime is 54215053. The next prime is 54215069. The reversal of 54215056 is 65051245.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (54215053) 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 15 ways as a sum of consecutive naturals, for example, 155170 + ... + 155518.

It is an arithmetic number, because the mean of its divisors is an integer number (1605800).

Almost surely, 2^54215056 is an apocalyptic number.

54215056 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54215056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64232000).

54215056 is an abundant number, since it is smaller than the sum of its proper divisors (74248944).

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

54215056 is a wasteful number, since it uses less digits than its factorization.

54215056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 54215056 is about 7363.0873959230. The cubic root of 54215056 is about 378.4774162323.

The spelling of 54215056 in words is "fifty-four million, two hundred fifteen thousand, fifty-six".