42003255 has 16 divisors (see below), whose sum is σ = 76806144. Its totient is φ = 19201440.

The previous prime is 42003253. The next prime is 42003257. The reversal of 42003255 is 55230024.

42003255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42003253) and next prime (42003257).

It is not a de Polignac number, because 42003255 - 2¹ = 42003253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42003253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199911 + ... + 200120.

It is an arithmetic number, because the mean of its divisors is an integer number (4800384).

Almost surely, 2^42003255 is an apocalyptic number.

42003255 is a deficient number, since it is larger than the sum of its proper divisors (34802889).

42003255 is a wasteful number, since it uses less digits than its factorization.

42003255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400046.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 42003255 is about 6480.9918222445. The cubic root of 42003255 is about 347.6116439922.

Adding to 42003255 its reverse (55230024), we get a palindrome (97233279).

The spelling of 42003255 in words is "forty-two million, three thousand, two hundred fifty-five".