255390103 has 4 divisors (see below), whose sum is σ = 259576888. Its totient is φ = 251203320.

The previous prime is 255390101. The next prime is 255390181. The reversal of 255390103 is 301093552.

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 255390103 - 2¹ = 255390101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255390101) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2093301 + ... + 2093422.

It is an arithmetic number, because the mean of its divisors is an integer number (64894222).

Almost surely, 2^255390103 is an apocalyptic number.

255390103 is a deficient number, since it is larger than the sum of its proper divisors (4186785).

255390103 is an equidigital number, since it uses as much as digits as its factorization.

255390103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4186784.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 255390103 is about 15980.9293534513. The cubic root of 255390103 is about 634.4557744316.

The spelling of 255390103 in words is "two hundred fifty-five million, three hundred ninety thousand, one hundred three".