42504255 has 24 divisors (see below), whose sum is σ = 76053120. Its totient is φ = 21936960.

The previous prime is 42504247. The next prime is 42504271. The reversal of 42504255 is 55240524.

It is not a de Polignac number, because 42504255 - 2³ = 42504247 is a prime.

It is a super-2 number, since 2×42504255² = 3613223386210050, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 13840 + ... + 16629.

It is an arithmetic number, because the mean of its divisors is an integer number (3168880).

Almost surely, 2^42504255 is an apocalyptic number.

42504255 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42504255 is a deficient number, since it is larger than the sum of its proper divisors (33548865).

42504255 is a wasteful number, since it uses less digits than its factorization.

42504255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30511 (or 30508 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 42504255 is about 6519.5287406376. The cubic root of 42504255 is about 348.9882481956.

Adding to 42504255 its reverse (55240524), we get a palindrome (97744779).

The spelling of 42504255 in words is "forty-two million, five hundred four thousand, two hundred fifty-five".