3550005 has 12 divisors (see below), whose sum is σ = 6153420. Its totient is φ = 1893312.

The previous prime is 3549983. The next prime is 3550007. The reversal of 3550005 is 5000553.

It can be written as a sum of positive squares in 2 ways, for example, as 427716 + 3122289 = 654^2 + 1767^2 .

It is not a de Polignac number, because 3550005 - 2⁷ = 3549877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3550005.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 39400 + ... + 39489.

It is an arithmetic number, because the mean of its divisors is an integer number (512785).

Almost surely, 2^3550005 is an apocalyptic number.

It is an amenable number.

3550005 is a deficient number, since it is larger than the sum of its proper divisors (2603415).

3550005 is a wasteful number, since it uses less digits than its factorization.

3550005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78900 (or 78897 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 18.

The square root of 3550005 is about 1884.1456950034. The cubic root of 3550005 is about 152.5491018093.

Adding to 3550005 its reverse (5000553), we get a palindrome (8550558).

The spelling of 3550005 in words is "three million, five hundred fifty thousand, five".