42045051 has 4 divisors (see below), whose sum is σ = 56060072. Its totient is φ = 28030032.

The previous prime is 42045037. The next prime is 42045053. The reversal of 42045051 is 15054024.

42045051 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 is not a de Polignac number, because 42045051 - 2⁵ = 42045019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42045053) 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, 7007506 + ... + 7007511.

It is an arithmetic number, because the mean of its divisors is an integer number (14015018).

Almost surely, 2^42045051 is an apocalyptic number.

42045051 is a deficient number, since it is larger than the sum of its proper divisors (14015021).

42045051 is a wasteful number, since it uses less digits than its factorization.

42045051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14015020.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 42045051 is about 6484.2155269547. The cubic root of 42045051 is about 347.7269045825.

Adding to 42045051 its reverse (15054024), we get a palindrome (57099075).

The spelling of 42045051 in words is "forty-two million, forty-five thousand, fifty-one".