65210725 has 12 divisors (see below), whose sum is σ = 85618404. Its totient is φ = 49099520.

The previous prime is 65210713. The next prime is 65210737. The reversal of 65210725 is 52701256.

65210725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (65210713) and next prime (65210737).

It can be written as a sum of positive squares in 6 ways, for example, as 5008644 + 60202081 = 2238^2 + 7759^2 .

It is not a de Polignac number, because 65210725 - 2⁷ = 65210597 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65210693 and 65210702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76294 + ... + 77143.

It is an arithmetic number, because the mean of its divisors is an integer number (7134867).

Almost surely, 2^65210725 is an apocalyptic number.

It is an amenable number.

65210725 is a deficient number, since it is larger than the sum of its proper divisors (20407679).

65210725 is a wasteful number, since it uses less digits than its factorization.

65210725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153464 (or 153459 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 65210725 is about 8075.3157832991. The cubic root of 65210725 is about 402.5066032892.

The spelling of 65210725 in words is "sixty-five million, two hundred ten thousand, seven hundred twenty-five".