2405557 has 12 divisors (see below), whose sum is σ = 3053376. Its totient is φ = 1874040.

The previous prime is 2405539. The next prime is 2405561. The reversal of 2405557 is 7555042.

2405557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2405557 - 2¹¹ = 2403509 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 (2405527) 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 11 ways as a sum of consecutive naturals, for example, 1693 + ... + 2770.

It is an arithmetic number, because the mean of its divisors is an integer number (254448).

2^2405557 is an apocalyptic number.

It is an amenable number.

2405557 is a deficient number, since it is larger than the sum of its proper divisors (647819).

2405557 is a wasteful number, since it uses less digits than its factorization.

2405557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4488 (or 4481 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 2405557 is about 1550.9858155380. The cubic root of 2405557 is about 133.9898447788.

The spelling of 2405557 in words is "two million, four hundred five thousand, five hundred fifty-seven".