42375555 has 24 divisors (see below), whose sum is σ = 76173552. Its totient is φ = 22599648.

The previous prime is 42375547. The next prime is 42375559. The reversal of 42375555 is 55557324.

It is not a de Polignac number, because 42375555 - 2³ = 42375547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42375559) by changing a digit.

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, 16224 + ... + 18653.

It is an arithmetic number, because the mean of its divisors is an integer number (3173898).

Almost surely, 2^42375555 is an apocalyptic number.

42375555 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42375555 is a deficient number, since it is larger than the sum of its proper divisors (33797997).

42375555 is an equidigital number, since it uses as much as digits as its factorization.

42375555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34897 (or 34885 counting only the distinct ones).

The product of its digits is 105000, while the sum is 36.

The square root of 42375555 is about 6509.6509122994. The cubic root of 42375555 is about 348.6356545009.

The spelling of 42375555 in words is "forty-two million, three hundred seventy-five thousand, five hundred fifty-five".