5425218 has 42 divisors (see below), whose sum is σ = 12404457. Its totient is φ = 1778760.

The previous prime is 5425207. The next prime is 5425219. The reversal of 5425218 is 8125245.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3674889 + 1750329 = 1917^2 + 1323^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1647.

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

It is a junction number, because it is equal to n+sod(n) for n = 5425191 and 5425200.

It is not an unprimeable number, because it can be changed into a prime (5425219) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 88908 + ... + 88968.

Almost surely, 2^5425218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5425218

5425218 is an abundant number, since it is smaller than the sum of its proper divisors (6979239).

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

5425218 is an frugal number, since it uses more digits than its factorization.

5425218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 66 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 5425218 is about 2329.2097372285. The cubic root of 5425218 is about 175.7137435183.

Adding to 5425218 its sum of digits (27), we get a palindrome (5425245).

Multiplying 5425218 by its product of digits (3200), we get a square (17360697600 = 131760²).

The spelling of 5425218 in words is "five million, four hundred twenty-five thousand, two hundred eighteen".