5540000 has 60 divisors (see below), whose sum is σ = 13678434. Its totient is φ = 2208000.

The previous prime is 5539999. The next prime is 5540023. The reversal of 5540000 is 455.

It can be written as a sum of positive squares in 5 ways, for example, as 26896 + 5513104 = 164^2 + 2348^2 .

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 19862 + ... + 20138.

Almost surely, 2^5540000 is an apocalyptic number.

5540000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6839217).

5540000 is an abundant number, since it is smaller than the sum of its proper divisors (8138434).

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

5540000 is an equidigital number, since it uses as much as digits as its factorization.

5540000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 14.

The square root of 5540000 is about 2353.7204591880. The cubic root of 5540000 is about 176.9443045636.

Adding to 5540000 its reverse (455), we get a palindrome (5540455).

The spelling of 5540000 in words is "five million, five hundred forty thousand".