42509054 has 16 divisors (see below), whose sum is σ = 73247328. Its totient is φ = 18124512.

The previous prime is 42509053. The next prime is 42509057. The reversal of 42509054 is 45090524.

It is a happy number.

42509054 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42509053) 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, 4949 + ... + 10464.

It is an arithmetic number, because the mean of its divisors is an integer number (4577958).

Almost surely, 2^42509054 is an apocalyptic number.

42509054 is a deficient number, since it is larger than the sum of its proper divisors (30738274).

42509054 is a wasteful number, since it uses less digits than its factorization.

42509054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15619.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 42509054 is about 6519.8967783240. The cubic root of 42509054 is about 349.0013820303.

Adding to 42509054 its reverse (45090524), we get a palindrome (87599578).

The spelling of 42509054 in words is "forty-two million, five hundred nine thousand, fifty-four".