42755227 has 4 divisors (see below), whose sum is σ = 42909856. Its totient is φ = 42600600.

The previous prime is 42755203. The next prime is 42755233. The reversal of 42755227 is 72255724.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42755227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42755192 and 42755201.

It is not an unprimeable number, because it can be changed into a prime (42755257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76899 + ... + 77452.

It is an arithmetic number, because the mean of its divisors is an integer number (10727464).

Almost surely, 2^42755227 is an apocalyptic number.

42755227 is a deficient number, since it is larger than the sum of its proper divisors (154629).

42755227 is a wasteful number, since it uses less digits than its factorization.

42755227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154628.

The product of its digits is 39200, while the sum is 34.

The square root of 42755227 is about 6538.7481217738. The cubic root of 42755227 is about 349.6737831194.

The spelling of 42755227 in words is "forty-two million, seven hundred fifty-five thousand, two hundred twenty-seven".