5545530 has 128 divisors (see below), whose sum is σ = 16588800. Its totient is φ = 1311552.

The previous prime is 5545513. The next prime is 5545531. The reversal of 5545530 is 355455.

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

It is a junction number, because it is equal to n+sod(n) for n = 5545494 and 5545503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5545531) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 117967 + ... + 118013.

It is an arithmetic number, because the mean of its divisors is an integer number (129600).

Almost surely, 2^5545530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5545530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8294400).

5545530 is an abundant number, since it is smaller than the sum of its proper divisors (11043270).

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

5545530 is a wasteful number, since it uses less digits than its factorization.

5545530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 5545530 is about 2354.8949021135. The cubic root of 5545530 is about 177.0031599551.

It can be divided in two parts, 554 and 5530, that added together give a square (6084 = 78²).

The spelling of 5545530 in words is "five million, five hundred forty-five thousand, five hundred thirty".