65542312 has 24 divisors (see below), whose sum is σ = 135081450. Its totient is φ = 29791520.

The previous prime is 65542289. The next prime is 65542331. The reversal of 65542312 is 21324556.

It can be written as a sum of positive squares in only one way, i.e., 65189476 + 352836 = 8074^2 + 594^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 32887 + ... + 34822.

Almost surely, 2^65542312 is an apocalyptic number.

It is an amenable number.

65542312 is an abundant number, since it is smaller than the sum of its proper divisors (69539138).

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

65542312 is a wasteful number, since it uses less digits than its factorization.

65542312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67737 (or 67722 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 65542312 is about 8095.8206501874. The cubic root of 65542312 is about 403.1876792710.

Adding to 65542312 its reverse (21324556), we get a palindrome (86866868).

The spelling of 65542312 in words is "sixty-five million, five hundred forty-two thousand, three hundred twelve".