5240 has 16 divisors (see below), whose sum is σ = 11880. Its totient is φ = 2080.

The previous prime is 5237. The next prime is 5261. The reversal of 5240 is 425.

5240 = 10² + 11² + ... + 25².

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26 + ... + 105.

2⁵²⁴⁰ is an apocalyptic number.

It is an amenable number.

5240 is an abundant number, since it is smaller than the sum of its proper divisors (6640).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5940).

5240 is a wasteful number, since it uses less digits than its factorization.

5240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 5240 is about 72.3878442834. The cubic root of 5240 is about 17.3690912054.

5240 divided by its product of nonzero digits (40) gives a palindrome (131).

Adding to 5240 its reverse (425), we get a palindrome (5665).

It can be divided in two parts, 52 and 40, that multiplied together give a triangular number (2080 = T₆₄).

The spelling of 5240 in words is "five thousand, two hundred forty".