255520203 has 8 divisors (see below), whose sum is σ = 344067216. Its totient is φ = 168660000.

The previous prime is 255520201. The next prime is 255520211. The reversal of 255520203 is 302025552.

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

It is not a de Polignac number, because 255520203 - 2¹ = 255520201 is a prime.

It is a super-2 number, since 2×255520203² = 130581148282322418, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (255520201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421348 + ... + 421953.

It is an arithmetic number, because the mean of its divisors is an integer number (43008402).

Almost surely, 2^255520203 is an apocalyptic number.

255520203 is a deficient number, since it is larger than the sum of its proper divisors (88547013).

255520203 is a wasteful number, since it uses less digits than its factorization.

255520203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843405.

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 255520203 is about 15984.9993118548. Note that the first 3 decimals coincide. The cubic root of 255520203 is about 634.5634902789.

Adding to 255520203 its reverse (302025552), we get a palindrome (557545755).

The spelling of 255520203 in words is "two hundred fifty-five million, five hundred twenty thousand, two hundred three".