65318725 has 6 divisors (see below), whose sum is σ = 80995250. Its totient is φ = 52254960.

The previous prime is 65318683. The next prime is 65318749. The reversal of 65318725 is 52781356.

It is a Cunningham number, because it is equal to 8082²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 1 + 65318724 = 1^2 + 8082^2 .

It is not a de Polignac number, because 65318725 - 2²³ = 56930117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1306350 + ... + 1306399.

Almost surely, 2^65318725 is an apocalyptic number.

It is an amenable number.

65318725 is a deficient number, since it is larger than the sum of its proper divisors (15676525).

65318725 is a wasteful number, since it uses less digits than its factorization.

65318725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2612759 (or 2612754 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 65318725 is about 8082.0000618659. Note that the first 4 decimals coincide. The cubic root of 65318725 is about 402.7286870897.

The spelling of 65318725 in words is "sixty-five million, three hundred eighteen thousand, seven hundred twenty-five".