200421255 has 8 divisors (see below), whose sum is σ = 320674032. Its totient is φ = 106891328.

The previous prime is 200421239. The next prime is 200421271. The reversal of 200421255 is 552124002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (200421239) and next prime (200421271).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200421255 - 2⁴ = 200421239 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6680694 + ... + 6680723.

It is an arithmetic number, because the mean of its divisors is an integer number (40084254).

Almost surely, 2^200421255 is an apocalyptic number.

200421255 is a deficient number, since it is larger than the sum of its proper divisors (120252777).

200421255 is a wasteful number, since it uses less digits than its factorization.

200421255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13361425.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 200421255 is about 14157.0214028234. The cubic root of 200421255 is about 585.2138454081.

Adding to 200421255 its reverse (552124002), we get a palindrome (752545257).

The spelling of 200421255 in words is "two hundred million, four hundred twenty-one thousand, two hundred fifty-five".