420552225 has 36 divisors (see below), whose sum is σ = 757943056. Its totient is φ = 222899040.

The previous prime is 420552173. The next prime is 420552227. The reversal of 420552225 is 522255024.

It is not a de Polignac number, because 420552225 - 2⁶ = 420552161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420552227) 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 35 ways as a sum of consecutive naturals, for example, 30942 + ... + 42408.

Almost surely, 2^420552225 is an apocalyptic number.

420552225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

420552225 is a deficient number, since it is larger than the sum of its proper divisors (337390831).

420552225 is a wasteful number, since it uses less digits than its factorization.

420552225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11646 (or 11638 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 420552225 is about 20507.3700166550. The cubic root of 420552225 is about 749.2153126406.

The spelling of 420552225 in words is "four hundred twenty million, five hundred fifty-two thousand, two hundred twenty-five".