65078725 has 12 divisors (see below), whose sum is σ = 80821216. Its totient is φ = 51983280.

The previous prime is 65078719. The next prime is 65078729. The reversal of 65078725 is 52787056.

It is not a de Polignac number, because 65078725 - 2⁵ = 65078693 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65078729) 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, 18994 + ... + 22156.

Almost surely, 2^65078725 is an apocalyptic number.

It is an amenable number.

65078725 is a deficient number, since it is larger than the sum of its proper divisors (15742491).

65078725 is a wasteful number, since it uses less digits than its factorization.

65078725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3996 (or 3991 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 65078725 is about 8067.1385881240. The cubic root of 65078725 is about 402.2348342854.

The spelling of 65078725 in words is "sixty-five million, seventy-eight thousand, seven hundred twenty-five".