5481216 has 144 divisors (see below), whose sum is σ = 17741920. Its totient is φ = 1658880.

The previous prime is 5481211. The next prime is 5481227. The reversal of 5481216 is 6121845.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 5481216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5481211) 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, 89826 + ... + 89886.

Almost surely, 2^5481216 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 5481216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8870960).

5481216 is an abundant number, since it is smaller than the sum of its proper divisors (12260704).

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

5481216 is a wasteful number, since it uses less digits than its factorization.

5481216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 79 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 5481216 is about 2341.1996924654. The cubic root of 5481216 is about 176.3162358565.

It can be divided in two parts, 548 and 1216, that added together give a square (1764 = 42²).

The spelling of 5481216 in words is "five million, four hundred eighty-one thousand, two hundred sixteen".