3020557 has 2 divisors, whose sum is σ = 3020558. Its totient is φ = 3020556.

The previous prime is 3020551. The next prime is 3020579. The reversal of 3020557 is 7550203.

3020557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (3020579) can be obtained adding 3020557 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2886601 + 133956 = 1699^2 + 366^2 .

It is an emirp because it is prime and its reverse (7550203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3020557 - 2¹⁹ = 2496269 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3020551) 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 as a sum of consecutive naturals, namely, 1510278 + 1510279.

It is an arithmetic number, because the mean of its divisors is an integer number (1510279).

Almost surely, 2^3020557 is an apocalyptic number.

It is an amenable number.

3020557 is a deficient number, since it is larger than the sum of its proper divisors (1).

3020557 is an equidigital number, since it uses as much as digits as its factorization.

3020557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1050, while the sum is 22.

The square root of 3020557 is about 1737.9749710511. The cubic root of 3020557 is about 144.5536332638.

The spelling of 3020557 in words is "three million, twenty thousand, five hundred fifty-seven".