65628125 has 12 divisors (see below), whose sum is σ = 82033812. Its totient is φ = 52500000.

The previous prime is 65628113. The next prime is 65628133. The reversal of 65628125 is 52182656.

It can be written as a sum of positive squares in 6 ways, for example, as 60637369 + 4990756 = 7787^2 + 2234^2 .

It is not a de Polignac number, because 65628125 - 2⁸ = 65627869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7376 + ... + 13625.

It is an arithmetic number, because the mean of its divisors is an integer number (6836151).

Almost surely, 2^65628125 is an apocalyptic number.

It is an amenable number.

65628125 is a deficient number, since it is larger than the sum of its proper divisors (16405687).

65628125 is an frugal number, since it uses more digits than its factorization.

65628125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21026 (or 21006 counting only the distinct ones).

The product of its digits is 28800, while the sum is 35.

The square root of 65628125 is about 8101.1187499012. The cubic root of 65628125 is about 403.3635638991.

The spelling of 65628125 in words is "sixty-five million, six hundred twenty-eight thousand, one hundred twenty-five".