42522747 has 8 divisors (see below), whose sum is σ = 56762880. Its totient is φ = 28315560.

The previous prime is 42522737. The next prime is 42522749. The reversal of 42522747 is 74722524.

It is a happy number.

42522747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42522747 - 2²⁰ = 41474171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42522749) 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 7 ways as a sum of consecutive naturals, for example, 5047 + ... + 10512.

It is an arithmetic number, because the mean of its divisors is an integer number (7095360).

Almost surely, 2^42522747 is an apocalyptic number.

42522747 is a deficient number, since it is larger than the sum of its proper divisors (14240133).

42522747 is a wasteful number, since it uses less digits than its factorization.

42522747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16473.

The product of its digits is 31360, while the sum is 33.

The square root of 42522747 is about 6520.9467870854. The cubic root of 42522747 is about 349.0388514040.

The spelling of 42522747 in words is "forty-two million, five hundred twenty-two thousand, seven hundred forty-seven".