65800725 has 12 divisors (see below), whose sum is σ = 108790656. Its totient is φ = 35093680.

The previous prime is 65800699. The next prime is 65800729. The reversal of 65800725 is 52700856.

It is a happy number.

It is not a de Polignac number, because 65800725 - 2⁶ = 65800661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65800729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 438597 + ... + 438746.

It is an arithmetic number, because the mean of its divisors is an integer number (9065888).

Almost surely, 2^65800725 is an apocalyptic number.

It is an amenable number.

65800725 is a deficient number, since it is larger than the sum of its proper divisors (42989931).

65800725 is a wasteful number, since it uses less digits than its factorization.

65800725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877356 (or 877351 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 65800725 is about 8111.7646045728. The cubic root of 65800725 is about 403.7168657131.

The spelling of 65800725 in words is "sixty-five million, eight hundred thousand, seven hundred twenty-five".