5501720 has 64 divisors (see below), whose sum is σ = 14472000. Its totient is φ = 1881600.

The previous prime is 5501707. The next prime is 5501723. The reversal of 5501720 is 271055.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 5501692 and 5501701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5501723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13520 + ... + 13920.

It is an arithmetic number, because the mean of its divisors is an integer number (226125).

Almost surely, 2^5501720 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 5501720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7236000).

5501720 is an abundant number, since it is smaller than the sum of its proper divisors (8970280).

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

5501720 is a wasteful number, since it uses less digits than its factorization.

5501720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 5501720 is about 2345.5745564786. The cubic root of 5501720 is about 176.5358154520.

Adding to 5501720 its reverse (271055), we get a palindrome (5772775).

It can be divided in two parts, 550 and 1720, that multiplied together give a triangular number (946000 = T₁₃₇₅).

The spelling of 5501720 in words is "five million, five hundred one thousand, seven hundred twenty".