42330555 has 24 divisors (see below), whose sum is σ = 74412000. Its totient is φ = 22256640.

The previous prime is 42330551. The next prime is 42330571. The reversal of 42330555 is 55503324.

It is not a de Polignac number, because 42330555 - 2² = 42330551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42330551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3430 + ... + 9819.

It is an arithmetic number, because the mean of its divisors is an integer number (3100500).

Almost surely, 2^42330555 is an apocalyptic number.

42330555 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42330555 is a deficient number, since it is larger than the sum of its proper divisors (32081445).

42330555 is a wasteful number, since it uses less digits than its factorization.

42330555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13331 (or 13328 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 42330555 is about 6506.1935876517. The cubic root of 42330555 is about 348.5122015562.

Adding to 42330555 its reverse (55503324), we get a palindrome (97833879).

The spelling of 42330555 in words is "forty-two million, three hundred thirty thousand, five hundred fifty-five".