65925520 has 20 divisors (see below), whose sum is σ = 153277020. Its totient is φ = 26370176.

The previous prime is 65925511. The next prime is 65925523. The reversal of 65925520 is 2552956.

It can be written as a sum of positive squares in 2 ways, for example, as 14258176 + 51667344 = 3776^2 + 7188^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (65925523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411955 + ... + 412114.

It is an arithmetic number, because the mean of its divisors is an integer number (7663851).

Almost surely, 2^65925520 is an apocalyptic number.

It is an amenable number.

65925520 is an abundant number, since it is smaller than the sum of its proper divisors (87351500).

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

65925520 is a wasteful number, since it uses less digits than its factorization.

65925520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824082 (or 824076 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 65925520 is about 8119.4531835586. The cubic root of 65925520 is about 403.9719289060.

The spelling of 65925520 in words is "sixty-five million, nine hundred twenty-five thousand, five hundred twenty".