255421203 has 4 divisors (see below), whose sum is σ = 340561608. Its totient is φ = 170280800.

The previous prime is 255421169. The next prime is 255421253. The reversal of 255421203 is 302124552.

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 255421203 - 2¹⁴ = 255404819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255421253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42570198 + ... + 42570203.

It is an arithmetic number, because the mean of its divisors is an integer number (85140402).

Almost surely, 2^255421203 is an apocalyptic number.

255421203 is a deficient number, since it is larger than the sum of its proper divisors (85140405).

255421203 is an equidigital number, since it uses as much as digits as its factorization.

255421203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85140404.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 255421203 is about 15981.9023586055. The cubic root of 255421203 is about 634.4815268961.

Adding to 255421203 its reverse (302124552), we get a palindrome (557545755).

The spelling of 255421203 in words is "two hundred fifty-five million, four hundred twenty-one thousand, two hundred three".