5517720 has 160 divisors (see below), whose sum is σ = 20124720. Its totient is φ = 1347840.

The previous prime is 5517697. The next prime is 5517727. The reversal of 5517720 is 277155.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5517727) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 42055 + ... + 42185.

Almost surely, 2^5517720 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 5517720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10062360).

5517720 is an abundant number, since it is smaller than the sum of its proper divisors (14607000).

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

5517720 is a wasteful number, since it uses less digits than its factorization.

5517720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 27.

The square root of 5517720 is about 2348.9827585574. The cubic root of 5517720 is about 176.7067825519.

The spelling of 5517720 in words is "five million, five hundred seventeen thousand, seven hundred twenty".