42020255 has 8 divisors (see below), whose sum is σ = 51376032. Its totient is φ = 32981728.

The previous prime is 42020249. The next prime is 42020261. The reversal of 42020255 is 55202024.

42020255 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 (42020249) and next prime (42020261).

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

It is a cyclic number.

It is not a de Polignac number, because 42020255 - 2¹⁶ = 41954719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 79019 + ... + 79548.

It is an arithmetic number, because the mean of its divisors is an integer number (6422004).

Almost surely, 2^42020255 is an apocalyptic number.

42020255 is a deficient number, since it is larger than the sum of its proper divisors (9355777).

42020255 is a wasteful number, since it uses less digits than its factorization.

42020255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158625.

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 42020255 is about 6482.3032172215. The cubic root of 42020255 is about 347.6585340161.

Adding to 42020255 its reverse (55202024), we get a palindrome (97222279).

The spelling of 42020255 in words is "forty-two million, twenty thousand, two hundred fifty-five".