65545242 has 32 divisors (see below), whose sum is σ = 152880000. Its totient is φ = 18726624.

The previous prime is 65545237. The next prime is 65545243. The reversal of 65545242 is 24254556.

It is not an unprimeable number, because it can be changed into a prime (65545243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13867 + ... + 17982.

It is an arithmetic number, because the mean of its divisors is an integer number (4777500).

Almost surely, 2^65545242 is an apocalyptic number.

65545242 is an abundant number, since it is smaller than the sum of its proper divisors (87334758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65545242 is a wasteful number, since it uses less digits than its factorization.

65545242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31875 (or 31861 counting only the distinct ones).

The product of its digits is 48000, while the sum is 33.

The square root of 65545242 is about 8096.0016057311. The cubic root of 65545242 is about 403.1936872083.

Adding to 65545242 its reverse (24254556), we get a palindrome (89799798).

The spelling of 65545242 in words is "sixty-five million, five hundred forty-five thousand, two hundred forty-two".