42655045 has 4 divisors (see below), whose sum is σ = 51186060. Its totient is φ = 34124032.

The previous prime is 42655037. The next prime is 42655049. The reversal of 42655045 is 54055624.

42655045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10381284 + 32273761 = 3222^2 + 5681^2 .

It is a cyclic number.

It is not a de Polignac number, because 42655045 - 2³ = 42655037 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 42654998 and 42655016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42655049) 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 3 ways as a sum of consecutive naturals, for example, 4265500 + ... + 4265509.

It is an arithmetic number, because the mean of its divisors is an integer number (12796515).

Almost surely, 2^42655045 is an apocalyptic number.

It is an amenable number.

42655045 is a deficient number, since it is larger than the sum of its proper divisors (8531015).

42655045 is an equidigital number, since it uses as much as digits as its factorization.

42655045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8531014.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 42655045 is about 6531.0829882953. The cubic root of 42655045 is about 349.4004565730.

The spelling of 42655045 in words is "forty-two million, six hundred fifty-five thousand, forty-five".