3005557 has 4 divisors (see below), whose sum is σ = 3024160. Its totient is φ = 2986956.

The previous prime is 3005551. The next prime is 3005573. The reversal of 3005557 is 7555003.

It is a happy number.

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 3005557 - 2¹⁵ = 2972789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3005551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9057 + ... + 9382.

It is an arithmetic number, because the mean of its divisors is an integer number (756040).

Almost surely, 2^3005557 is an apocalyptic number.

It is an amenable number.

3005557 is a deficient number, since it is larger than the sum of its proper divisors (18603).

3005557 is a wasteful number, since it uses less digits than its factorization.

3005557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18602.

The product of its (nonzero) digits is 2625, while the sum is 25.

The square root of 3005557 is about 1733.6542331157. The cubic root of 3005557 is about 144.3139530017.

The spelling of 3005557 in words is "three million, five thousand, five hundred fifty-seven".