3550003 has 4 divisors (see below), whose sum is σ = 3556168. Its totient is φ = 3543840.

The previous prime is 3549983. The next prime is 3550007. The reversal of 3550003 is 3000553.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3550003 - 2¹⁷ = 3418931 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 2118 + ... + 3403.

It is an arithmetic number, because the mean of its divisors is an integer number (889042).

Almost surely, 2^3550003 is an apocalyptic number.

3550003 is a deficient number, since it is larger than the sum of its proper divisors (6165).

3550003 is an equidigital number, since it uses as much as digits as its factorization.

3550003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6164.

The product of its (nonzero) digits is 225, while the sum is 16.

The square root of 3550003 is about 1884.1451642588. The cubic root of 3550003 is about 152.5490731616.

Adding to 3550003 its reverse (3000553), we get a palindrome (6550556).

The spelling of 3550003 in words is "three million, five hundred fifty thousand, three".