20103255 has 16 divisors (see below), whose sum is σ = 35739360. Its totient is φ = 10721664.

The previous prime is 20103241. The next prime is 20103269. The reversal of 20103255 is 55230102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20103241) and next prime (20103269).

It is not a de Polignac number, because 20103255 - 2⁶ = 20103191 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 (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74322 + ... + 74591.

It is an arithmetic number, because the mean of its divisors is an integer number (2233710).

Almost surely, 2^20103255 is an apocalyptic number.

20103255 is a deficient number, since it is larger than the sum of its proper divisors (15636105).

20103255 is a wasteful number, since it uses less digits than its factorization.

20103255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148927 (or 148921 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 20103255 is about 4483.6653532573. The cubic root of 20103255 is about 271.9080887195.

Adding to 20103255 its reverse (55230102), we get a palindrome (75333357).

The spelling of 20103255 in words is "twenty million, one hundred three thousand, two hundred fifty-five".