65403225 has 36 divisors (see below), whose sum is σ = 123318000. Its totient is φ = 33043680.

The previous prime is 65403209. The next prime is 65403227. The reversal of 65403225 is 52230456.

65403225 is a `hidden beast` number, since 654 + 0 + 3 + 2 + 2 + 5 = 666.

It is not a de Polignac number, because 65403225 - 2⁴ = 65403209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65403227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3375 + ... + 11924.

It is an arithmetic number, because the mean of its divisors is an integer number (3425500).

Almost surely, 2^65403225 is an apocalyptic number.

It is an amenable number.

65403225 is a deficient number, since it is larger than the sum of its proper divisors (57914775).

65403225 is a wasteful number, since it uses less digits than its factorization.

65403225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15334 (or 15326 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 65403225 is about 8087.2260386365. The cubic root of 65403225 is about 402.9022764648.

The spelling of 65403225 in words is "sixty-five million, four hundred three thousand, two hundred twenty-five".