65539701 has 12 divisors (see below), whose sum is σ = 94797612. Its totient is φ = 43633536.

The previous prime is 65539657. The next prime is 65539703. The reversal of 65539701 is 10793556.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11737476 + 53802225 = 3426^2 + 7335^2 .

It is not a de Polignac number, because 65539701 - 2⁶ = 65539637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65539703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2605 + ... + 11741.

It is an arithmetic number, because the mean of its divisors is an integer number (7899801).

Almost surely, 2^65539701 is an apocalyptic number.

It is an amenable number.

65539701 is a deficient number, since it is larger than the sum of its proper divisors (29257911).

65539701 is a wasteful number, since it uses less digits than its factorization.

65539701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9940 (or 9937 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 65539701 is about 8095.6593925387. The cubic root of 65539701 is about 403.1823252893.

The spelling of 65539701 in words is "sixty-five million, five hundred thirty-nine thousand, seven hundred one".