2405563 has 2 divisors, whose sum is σ = 2405564. Its totient is φ = 2405562.

The previous prime is 2405561. The next prime is 2405573. The reversal of 2405563 is 3655042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2405563 - 2¹ = 2405561 is a prime.

Together with 2405561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2405561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1202781 + 1202782.

It is an arithmetic number, because the mean of its divisors is an integer number (1202782).

2^2405563 is an apocalyptic number.

2405563 is a deficient number, since it is larger than the sum of its proper divisors (1).

2405563 is an equidigital number, since it uses as much as digits as its factorization.

2405563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 2405563 is about 1550.9877497904. The cubic root of 2405563 is about 133.9899561790.

The spelling of 2405563 in words is "two million, four hundred five thousand, five hundred sixty-three".