55500016 has 80 divisors (see below), whose sum is σ = 127991808. Its totient is φ = 22982400.

The previous prime is 55499993. The next prime is 55500031. The reversal of 55500016 is 61000555.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a self number, because there is not a number n which added to its sum of digits gives 55500016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290481 + ... + 290671.

Almost surely, 2^55500016 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 55500016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63995904).

55500016 is an abundant number, since it is smaller than the sum of its proper divisors (72491792).

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

55500016 is a wasteful number, since it uses less digits than its factorization.

55500016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 344 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 55500016 is about 7449.8332867253. The cubic root of 55500016 is about 381.4442179479. Note that the first 3 decimals are identical.

The spelling of 55500016 in words is "fifty-five million, five hundred thousand, sixteen".