5550066 has 32 divisors (see below), whose sum is σ = 12499200. Its totient is φ = 1825200.

The previous prime is 5550059. The next prime is 5550073. The reversal of 5550066 is 6600555.

It is an interprime number because it is at equal distance from previous prime (5550059) and next prime (5550073).

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

It is a zygodrome in base 10.

It is a congruent number.

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, 3616 + ... + 4916.

It is an arithmetic number, because the mean of its divisors is an integer number (390600).

Almost surely, 2^5550066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5550066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6249600).

5550066 is an abundant number, since it is smaller than the sum of its proper divisors (6949134).

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

5550066 is a wasteful number, since it uses less digits than its factorization.

5550066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391 (or 1385 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 5550066 is about 2355.8578055562. The cubic root of 5550066 is about 177.0514070733.

The spelling of 5550066 in words is "five million, five hundred fifty thousand, sixty-six".