3550000 has 60 divisors (see below), whose sum is σ = 8718192. Its totient is φ = 1400000.

The previous prime is 3549983. The next prime is 3550007. The reversal of 3550000 is 553.

It is not an unprimeable number, because it can be changed into a prime (3550007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49965 + ... + 50035.

Almost surely, 2^3550000 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 3550000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4359096).

3550000 is an abundant number, since it is smaller than the sum of its proper divisors (5168192).

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

3550000 is an frugal number, since it uses more digits than its factorization.

3550000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 75, while the sum is 13.

The square root of 3550000 is about 1884.1443681417. The cubic root of 3550000 is about 152.5490301900.

Adding to 3550000 its reverse (553), we get a palindrome (3550553).

The spelling of 3550000 in words is "three million, five hundred fifty thousand".