3552581 has 4 divisors (see below), whose sum is σ = 3567564. Its totient is φ = 3537600.

The previous prime is 3552559. The next prime is 3552583. The reversal of 3552581 is 1852553.

3552581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1852553 = 37 ⋅50069.

It can be written as a sum of positive squares in 2 ways, for example, as 3150625 + 401956 = 1775^2 + 634^2 .

It is a cyclic number.

It is not a de Polignac number, because 3552581 - 2⁶ = 3552517 is a prime.

It is a super-2 number, since 2×3552581² = 25241663523122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3552583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7130 + ... + 7611.

It is an arithmetic number, because the mean of its divisors is an integer number (891891).

Almost surely, 2^3552581 is an apocalyptic number.

It is an amenable number.

3552581 is a deficient number, since it is larger than the sum of its proper divisors (14983).

3552581 is a wasteful number, since it uses less digits than its factorization.

3552581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14982.

The product of its digits is 6000, while the sum is 29.

The square root of 3552581 is about 1884.8291699780. The cubic root of 3552581 is about 152.5859910977.

The spelling of 3552581 in words is "three million, five hundred fifty-two thousand, five hundred eighty-one".