5518780 has 12 divisors (see below), whose sum is σ = 11589480. Its totient is φ = 2207504.

The previous prime is 5518687. The next prime is 5518817. The reversal of 5518780 is 878155.

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, 137950 + ... + 137989.

It is an arithmetic number, because the mean of its divisors is an integer number (965790).

Almost surely, 2^5518780 is an apocalyptic number.

It is an amenable number.

5518780 is an abundant number, since it is smaller than the sum of its proper divisors (6070700).

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

5518780 is a wasteful number, since it uses less digits than its factorization.

5518780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275948 (or 275946 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 34.

The square root of 5518780 is about 2349.2083773050. The cubic root of 5518780 is about 176.7180974426.

The spelling of 5518780 in words is "five million, five hundred eighteen thousand, seven hundred eighty".