420532559 has 2 divisors, whose sum is σ = 420532560. Its totient is φ = 420532558.

The previous prime is 420532549. The next prime is 420532583. The reversal of 420532559 is 955235024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420532559 - 2¹⁶ = 420467023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420532549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210266279 + 210266280.

It is an arithmetic number, because the mean of its divisors is an integer number (210266280).

Almost surely, 2^420532559 is an apocalyptic number.

420532559 is a deficient number, since it is larger than the sum of its proper divisors (1).

420532559 is an equidigital number, since it uses as much as digits as its factorization.

420532559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 420532559 is about 20506.8905248943. The cubic root of 420532559 is about 749.2036341085.

The spelling of 420532559 in words is "four hundred twenty million, five hundred thirty-two thousand, five hundred fifty-nine".