5518254 has 64 divisors (see below), whose sum is σ = 13395456. Its totient is φ = 1482624.

The previous prime is 5518241. The next prime is 5518259. The reversal of 5518254 is 4528155.

5518254 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×5518254² = 60902254417032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5518259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82329 + ... + 82395.

It is an arithmetic number, because the mean of its divisors is an integer number (209304).

Almost surely, 2^5518254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5518254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6697728).

5518254 is an abundant number, since it is smaller than the sum of its proper divisors (7877202).

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

5518254 is a wasteful number, since it uses less digits than its factorization.

5518254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169.

The product of its digits is 8000, while the sum is 30.

The square root of 5518254 is about 2349.0964220312. The cubic root of 5518254 is about 176.7124828760.

Subtracting from 5518254 its reverse (4528155), we obtain a palindrome (990099).

The spelling of 5518254 in words is "five million, five hundred eighteen thousand, two hundred fifty-four".