65028725 has 6 divisors (see below), whose sum is σ = 80635650. Its totient is φ = 52022960.

The previous prime is 65028709. The next prime is 65028727. The reversal of 65028725 is 52782056.

It can be written as a sum of positive squares in 3 ways, for example, as 4157521 + 60871204 = 2039^2 + 7802^2 .

It is not a de Polignac number, because 65028725 - 2⁴ = 65028709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65028727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1300550 + ... + 1300599.

It is an arithmetic number, because the mean of its divisors is an integer number (13439275).

Almost surely, 2^65028725 is an apocalyptic number.

It is an amenable number.

65028725 is a deficient number, since it is larger than the sum of its proper divisors (15606925).

65028725 is a wasteful number, since it uses less digits than its factorization.

65028725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2601159 (or 2601154 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 65028725 is about 8064.0390004017. The cubic root of 65028725 is about 402.1317955195.

The spelling of 65028725 in words is "sixty-five million, twenty-eight thousand, seven hundred twenty-five".