3551006 has 4 divisors (see below), whose sum is σ = 5326512. Its totient is φ = 1775502.

The previous prime is 3551003. The next prime is 3551027. The reversal of 3551006 is 6001553.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6001553 = 43 ⋅139571.

It is a super-2 number, since 2×3551006² = 25219287224072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3551003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 887750 + ... + 887753.

It is an arithmetic number, because the mean of its divisors is an integer number (1331628).

Almost surely, 2^3551006 is an apocalyptic number.

3551006 is a deficient number, since it is larger than the sum of its proper divisors (1775506).

3551006 is a wasteful number, since it uses less digits than its factorization.

3551006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775505.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 3551006 is about 1884.4113139121. The cubic root of 3551006 is about 152.5634386248.

Adding to 3551006 its reverse (6001553), we get a palindrome (9552559).

The spelling of 3551006 in words is "three million, five hundred fifty-one thousand, six".