5540249 has 32 divisors (see below), whose sum is σ = 7185024. Its totient is φ = 4193280.

The previous prime is 5540243. The next prime is 5540251. The reversal of 5540249 is 9420455.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-5540249 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5540243) 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, 104507 + ... + 104559.

It is an arithmetic number, because the mean of its divisors is an integer number (224532).

Almost surely, 2^5540249 is an apocalyptic number.

It is an amenable number.

5540249 is a deficient number, since it is larger than the sum of its proper divisors (1644775).

5540249 is a wasteful number, since it uses less digits than its factorization.

5540249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 5540249 is about 2353.7733535751. The cubic root of 5540249 is about 176.9469554945.

It can be divided in two parts, 55 and 40249, that added together give a palindrome (40304).

The spelling of 5540249 in words is "five million, five hundred forty thousand, two hundred forty-nine".