5513640 has 64 divisors (see below), whose sum is σ = 18048960. Its totient is φ = 1336320.

The previous prime is 5513623. The next prime is 5513663. The reversal of 5513640 is 463155.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 5513640.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 769 + ... + 3408.

It is an arithmetic number, because the mean of its divisors is an integer number (282015).

Almost surely, 2^5513640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5513640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9024480).

5513640 is an abundant number, since it is smaller than the sum of its proper divisors (12535320).

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

5513640 is a wasteful number, since it uses less digits than its factorization.

5513640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4202 (or 4198 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 5513640 is about 2348.1141369192. The cubic root of 5513640 is about 176.6632173687.

Adding to 5513640 its reverse (463155), we get a palindrome (5976795).

It can be divided in two parts, 55 and 13640, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 5513640 in words is "five million, five hundred thirteen thousand, six hundred forty".