54565616 has 60 divisors (see below), whose sum is σ = 124679520. Its totient is φ = 23063040.

The previous prime is 54565607. The next prime is 54565657. The reversal of 54565616 is 61656545.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 54565616.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 61496 + ... + 62376.

It is an arithmetic number, because the mean of its divisors is an integer number (2077992).

Almost surely, 2^54565616 is an apocalyptic number.

54565616 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 54565616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62339760).

54565616 is an abundant number, since it is smaller than the sum of its proper divisors (70113904).

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

54565616 is a wasteful number, since it uses less digits than its factorization.

54565616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982 (or 969 counting only the distinct ones).

The product of its digits is 108000, while the sum is 38.

The square root of 54565616 is about 7386.8542695792. The cubic root of 54565616 is about 379.2914219328.

The spelling of 54565616 in words is "fifty-four million, five hundred sixty-five thousand, six hundred sixteen".