65531347 has 16 divisors (see below), whose sum is σ = 78746112. Its totient is φ = 53317440.

The previous prime is 65531341. The next prime is 65531383. The reversal of 65531347 is 74313556.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65531347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65531341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20572 + ... + 23542.

It is an arithmetic number, because the mean of its divisors is an integer number (4921632).

Almost surely, 2^65531347 is an apocalyptic number.

65531347 is a deficient number, since it is larger than the sum of its proper divisors (13214765).

65531347 is a wasteful number, since it uses less digits than its factorization.

65531347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3138.

The product of its digits is 37800, while the sum is 34.

The square root of 65531347 is about 8095.1434205948. The cubic root of 65531347 is about 403.1651940533.

The spelling of 65531347 in words is "sixty-five million, five hundred thirty-one thousand, three hundred forty-seven".