3055581 has 12 divisors (see below), whose sum is σ = 4429152. Its totient is φ = 2029896.

The previous prime is 3055567. The next prime is 3055583. The reversal of 3055581 is 1855503.

3055581 is a `hidden beast` number, since 30 + 55 + 581 = 666.

It is not a de Polignac number, because 3055581 - 2¹³ = 3047389 is a prime.

It is a super-2 number, since 2×3055581² = 18673150495122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3055583) 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, 3840 + ... + 4566.

It is an arithmetic number, because the mean of its divisors is an integer number (369096).

Almost surely, 2^3055581 is an apocalyptic number.

It is an amenable number.

3055581 is a deficient number, since it is larger than the sum of its proper divisors (1373571).

3055581 is a wasteful number, since it uses less digits than its factorization.

3055581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200 (or 1197 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 3055581 is about 1748.0220250329. The cubic root of 3055581 is about 145.1101976414.

It can be divided in two parts, 305 and 5581, that added together give a triangular number (5886 = T₁₀₈).

The spelling of 3055581 in words is "three million, fifty-five thousand, five hundred eighty-one".