42755811 has 16 divisors (see below), whose sum is σ = 65253888. Its totient is φ = 24393600.

The previous prime is 42755807. The next prime is 42755813. The reversal of 42755811 is 11855724.

42755811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42755811 - 2² = 42755807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42755813) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 17346 + ... + 19656.

It is an arithmetic number, because the mean of its divisors is an integer number (4078368).

Almost surely, 2^42755811 is an apocalyptic number.

42755811 is a deficient number, since it is larger than the sum of its proper divisors (22498077).

42755811 is a wasteful number, since it uses less digits than its factorization.

42755811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202.

The product of its digits is 11200, while the sum is 33.

The square root of 42755811 is about 6538.7927784875. The cubic root of 42755811 is about 349.6753751942.

The spelling of 42755811 in words is "forty-two million, seven hundred fifty-five thousand, eight hundred eleven".