5518548 has 72 divisors (see below), whose sum is σ = 16248960. Its totient is φ = 1546560.

The previous prime is 5518547. The next prime is 5518549. The reversal of 5518548 is 8458155.

It is an interprime number because it is at equal distance from previous prime (5518547) and next prime (5518549).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5518543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15193 + ... + 15551.

It is an arithmetic number, because the mean of its divisors is an integer number (225680).

Almost surely, 2^5518548 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 5518548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8124480).

5518548 is an abundant number, since it is smaller than the sum of its proper divisors (10730412).

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

5518548 is a wasteful number, since it uses less digits than its factorization.

5518548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 432 counting only the distinct ones).

The product of its digits is 32000, while the sum is 36.

The square root of 5518548 is about 2349.1589984503. The cubic root of 5518548 is about 176.7156210998.

The spelling of 5518548 in words is "five million, five hundred eighteen thousand, five hundred forty-eight".