42755633 has 4 divisors (see below), whose sum is σ = 42860580. Its totient is φ = 42650688.

The previous prime is 42755627. The next prime is 42755651. The reversal of 42755633 is 33655724.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16459249 + 26296384 = 4057^2 + 5128^2 .

It is a cyclic number.

It is not a de Polignac number, because 42755633 - 2²⁴ = 25978417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42755593 and 42755602.

It is not an unprimeable number, because it can be changed into a prime (42755033) 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 3 ways as a sum of consecutive naturals, for example, 51860 + ... + 52677.

It is an arithmetic number, because the mean of its divisors is an integer number (10715145).

Almost surely, 2^42755633 is an apocalyptic number.

It is an amenable number.

42755633 is a deficient number, since it is larger than the sum of its proper divisors (104947).

42755633 is a wasteful number, since it uses less digits than its factorization.

42755633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104946.

The product of its digits is 75600, while the sum is 35.

The square root of 42755633 is about 6538.7791673981. The cubic root of 42755633 is about 349.6748899401.

Subtracting from 42755633 its reverse (33655724), we obtain a palindrome (9099909).

The spelling of 42755633 in words is "forty-two million, seven hundred fifty-five thousand, six hundred thirty-three".