65990325 has 24 divisors (see below), whose sum is σ = 114848800. Its totient is φ = 33341760.

The previous prime is 65990317. The next prime is 65990347. The reversal of 65990325 is 52309956.

It is not a de Polignac number, because 65990325 - 2³ = 65990317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21730 + ... + 24579.

Almost surely, 2^65990325 is an apocalyptic number.

It is an amenable number.

65990325 is a deficient number, since it is larger than the sum of its proper divisors (48858475).

65990325 is a wasteful number, since it uses less digits than its factorization.

65990325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46341 (or 46336 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 39.

The square root of 65990325 is about 8123.4429277247. The cubic root of 65990325 is about 404.1042541289.

The spelling of 65990325 in words is "sixty-five million, nine hundred ninety thousand, three hundred twenty-five".