65531306 has 4 divisors (see below), whose sum is σ = 98296962. Its totient is φ = 32765652.

The previous prime is 65531287. The next prime is 65531317. The reversal of 65531306 is 60313556.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 50282281 + 15249025 = 7091^2 + 3905^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16382825 + ... + 16382828.

Almost surely, 2^65531306 is an apocalyptic number.

65531306 is a deficient number, since it is larger than the sum of its proper divisors (32765656).

65531306 is a wasteful number, since it uses less digits than its factorization.

65531306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32765655.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 65531306 is about 8095.1408882119. The cubic root of 65531306 is about 403.1651099725.

The spelling of 65531306 in words is "sixty-five million, five hundred thirty-one thousand, three hundred six".