55041616 has 80 divisors (see below), whose sum is σ = 127991808. Its totient is φ = 22435200.

The previous prime is 55041601. The next prime is 55041619. The reversal of 55041616 is 61614055.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55041619) 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, 288081 + ... + 288271.

Almost surely, 2^55041616 is an apocalyptic number.

55041616 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 55041616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63995904).

55041616 is an abundant number, since it is smaller than the sum of its proper divisors (72950192).

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

55041616 is a wasteful number, since it uses less digits than its factorization.

55041616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 55041616 is about 7419.0037066981. The cubic root of 55041616 is about 380.3911392697.

The spelling of 55041616 in words is "fifty-five million, forty-one thousand, six hundred sixteen".