65443125 has 80 divisors (see below), whose sum is σ = 125959680. Its totient is φ = 29880000.

The previous prime is 65443123. The next prime is 65443153. The reversal of 65443125 is 52134456.

It is not a de Polignac number, because 65443125 - 2¹ = 65443123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65443092 and 65443101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65443123) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 391792 + ... + 391958.

It is an arithmetic number, because the mean of its divisors is an integer number (1574496).

Almost surely, 2^65443125 is an apocalyptic number.

It is an amenable number.

65443125 is a deficient number, since it is larger than the sum of its proper divisors (60516555).

65443125 is a wasteful number, since it uses less digits than its factorization.

65443125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 205 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 65443125 is about 8089.6925157882. The cubic root of 65443125 is about 402.9841915531.

It can be divided in two parts, 654431 and 25, that added together give a palindrome (654456).

The spelling of 65443125 in words is "sixty-five million, four hundred forty-three thousand, one hundred twenty-five".