420223550 has 24 divisors (see below), whose sum is σ = 782464800. Its totient is φ = 167906880.

The previous prime is 420223523. The next prime is 420223579. The reversal of 420223550 is 55322024.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 47906 + ... + 55994.

It is an arithmetic number, because the mean of its divisors is an integer number (32602700).

Almost surely, 2^420223550 is an apocalyptic number.

420223550 is a deficient number, since it is larger than the sum of its proper divisors (362241250).

420223550 is a wasteful number, since it uses less digits than its factorization.

420223550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9140 (or 9135 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 420223550 is about 20499.3548678977. The cubic root of 420223550 is about 749.0200832047.

Adding to 420223550 its reverse (55322024), we get a palindrome (475545574).

The spelling of 420223550 in words is "four hundred twenty million, two hundred twenty-three thousand, five hundred fifty".