405454559 has 2 divisors, whose sum is σ = 405454560. Its totient is φ = 405454558.

The previous prime is 405454531. The next prime is 405454601. The reversal of 405454559 is 955454504.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-405454559 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 (405454519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202727279 + 202727280.

It is an arithmetic number, because the mean of its divisors is an integer number (202727280).

Almost surely, 2^405454559 is an apocalyptic number.

405454559 is a deficient number, since it is larger than the sum of its proper divisors (1).

405454559 is an equidigital number, since it uses as much as digits as its factorization.

405454559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360000, while the sum is 41.

The square root of 405454559 is about 20135.9022395323. The cubic root of 405454559 is about 740.1403185336.

Subtracting 405454559 from its reverse (955454504), we obtain a palindrome (549999945).

The spelling of 405454559 in words is "four hundred five million, four hundred fifty-four thousand, five hundred fifty-nine".