42648055 has 4 divisors (see below), whose sum is σ = 51177672. Its totient is φ = 34118440.

The previous prime is 42648043. The next prime is 42648059. The reversal of 42648055 is 55084624.

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

It is a de Polignac number, because none of the positive numbers 2^k-42648055 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42648055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42648059) 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, 4264801 + ... + 4264810.

It is an arithmetic number, because the mean of its divisors is an integer number (12794418).

Almost surely, 2^42648055 is an apocalyptic number.

42648055 is a deficient number, since it is larger than the sum of its proper divisors (8529617).

42648055 is an equidigital number, since it uses as much as digits as its factorization.

42648055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8529616.

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 42648055 is about 6530.5478330688. The cubic root of 42648055 is about 349.3813697912.

The spelling of 42648055 in words is "forty-two million, six hundred forty-eight thousand, fifty-five".