3550181 has 4 divisors (see below), whose sum is σ = 3595200. Its totient is φ = 3505164.

The previous prime is 3550177. The next prime is 3550189. The reversal of 3550181 is 1810553.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3550181 - 2² = 3550177 is a prime.

It is a super-2 number, since 2×3550181² = 25207570265522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3550189) 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 in 3 ways as a sum of consecutive naturals, for example, 22391 + ... + 22548.

It is an arithmetic number, because the mean of its divisors is an integer number (898800).

Almost surely, 2^3550181 is an apocalyptic number.

It is an amenable number.

3550181 is a deficient number, since it is larger than the sum of its proper divisors (45019).

3550181 is an equidigital number, since it uses as much as digits as its factorization.

3550181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45018.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 3550181 is about 1884.1923999422. The cubic root of 3550181 is about 152.5516227633.

The spelling of 3550181 in words is "three million, five hundred fifty thousand, one hundred eighty-one".