420153563 has 4 divisors (see below), whose sum is σ = 420243120. Its totient is φ = 420064008.

The previous prime is 420153551. The next prime is 420153577. The reversal of 420153563 is 365351024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420153563 - 2¹⁰ = 420152539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420153533) 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 in 3 ways as a sum of consecutive naturals, for example, 37328 + ... + 47261.

It is an arithmetic number, because the mean of its divisors is an integer number (105060780).

Almost surely, 2^420153563 is an apocalyptic number.

420153563 is a deficient number, since it is larger than the sum of its proper divisors (89557).

420153563 is an equidigital number, since it uses as much as digits as its factorization.

420153563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89556.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 420153563 is about 20497.6477430948. The cubic root of 420153563 is about 748.9784985298.

The spelling of 420153563 in words is "four hundred twenty million, one hundred fifty-three thousand, five hundred sixty-three".