55023616 has 48 divisors (see below), whose sum is σ = 111940920. Its totient is φ = 27033600.

The previous prime is 55023589. The next prime is 55023629. The reversal of 55023616 is 61632055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137016 + ... + 137416.

Almost surely, 2^55023616 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 55023616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55970460).

55023616 is an abundant number, since it is smaller than the sum of its proper divisors (56917304).

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

55023616 is an equidigital number, since it uses as much as digits as its factorization.

55023616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 55023616 is about 7417.7905066131. The cubic root of 55023616 is about 380.3496689089.

The spelling of 55023616 in words is "fifty-five million, twenty-three thousand, six hundred sixteen".