5518425 has 24 divisors (see below), whose sum is σ = 9954720. Its totient is φ = 2675200.

The previous prime is 5518423. The next prime is 5518433. The reversal of 5518425 is 5248155.

It is not a de Polignac number, because 5518425 - 2¹ = 5518423 is a prime.

5518425 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5518392 and 5518401.

It is not an unprimeable number, because it can be changed into a prime (5518423) 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, 2520 + ... + 4169.

It is an arithmetic number, because the mean of its divisors is an integer number (414780).

Almost surely, 2^5518425 is an apocalyptic number.

5518425 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5518425 is a deficient number, since it is larger than the sum of its proper divisors (4436295).

5518425 is a wasteful number, since it uses less digits than its factorization.

5518425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6713 (or 6708 counting only the distinct ones).

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

The square root of 5518425 is about 2349.1328187227. The cubic root of 5518425 is about 176.7143081830.

The spelling of 5518425 in words is "five million, five hundred eighteen thousand, four hundred twenty-five".