65944725 has 96 divisors (see below), whose sum is σ = 143324160. Its totient is φ = 25920000.

The previous prime is 65944709. The next prime is 65944727. The reversal of 65944725 is 52744956.

It is not a de Polignac number, because 65944725 - 2⁴ = 65944709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65944727) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 109425 + ... + 110025.

It is an arithmetic number, because the mean of its divisors is an integer number (1492960).

Almost surely, 2^65944725 is an apocalyptic number.

It is an amenable number.

65944725 is an abundant number, since it is smaller than the sum of its proper divisors (77379435).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65944725 is a wasteful number, since it uses less digits than its factorization.

65944725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651 (or 646 counting only the distinct ones).

The product of its digits is 302400, while the sum is 42.

The square root of 65944725 is about 8120.6357509742. The cubic root of 65944725 is about 404.0111526020.

The spelling of 65944725 in words is "sixty-five million, nine hundred forty-four thousand, seven hundred twenty-five".