2445557 has 2 divisors, whose sum is σ = 2445558. Its totient is φ = 2445556.

The previous prime is 2445533. The next prime is 2445571. The reversal of 2445557 is 7555442.

2445557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2436721 + 8836 = 1561^2 + 94^2 .

It is a cyclic number.

It is not a de Polignac number, because 2445557 - 2⁸ = 2445301 is a prime.

It is a Chen prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2445517) 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, 1222778 + 1222779.

It is an arithmetic number, because the mean of its divisors is an integer number (1222779).

2^2445557 is an apocalyptic number.

It is an amenable number.

2445557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2445557 is an equidigital number, since it uses as much as digits as its factorization.

2445557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28000, while the sum is 32.

The square root of 2445557 is about 1563.8276759285. The cubic root of 2445557 is about 134.7284344242.

The spelling of 2445557 in words is "two million, four hundred forty-five thousand, five hundred fifty-seven".