65539125 has 40 divisors (see below), whose sum is σ = 122203224. Its totient is φ = 34948800.

The previous prime is 65539079. The next prime is 65539129. The reversal of 65539125 is 52193556.

It can be written as a sum of positive squares in 4 ways, for example, as 9199089 + 56340036 = 3033^2 + 7506^2 .

It is not a de Polignac number, because 65539125 - 2¹⁰ = 65538101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65539125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65539129) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6889 + ... + 13361.

Almost surely, 2^65539125 is an apocalyptic number.

It is an amenable number.

65539125 is a deficient number, since it is larger than the sum of its proper divisors (56664099).

65539125 is an equidigital number, since it uses as much as digits as its factorization.

65539125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6500 (or 6481 counting only the distinct ones).

The product of its digits is 40500, while the sum is 36.

The square root of 65539125 is about 8095.6238178413. The cubic root of 65539125 is about 403.1811441544.

The spelling of 65539125 in words is "sixty-five million, five hundred thirty-nine thousand, one hundred twenty-five".