64650225 has 24 divisors (see below), whose sum is σ = 107221312. Its totient is φ = 34372800.

The previous prime is 64650191. The next prime is 64650227. The reversal of 64650225 is 52205646.

It is not a de Polignac number, because 64650225 - 2⁶ = 64650161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64650192 and 64650201.

It is not an unprimeable number, because it can be changed into a prime (64650227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26820 + ... + 29130.

Almost surely, 2^64650225 is an apocalyptic number.

It is an amenable number.

64650225 is a deficient number, since it is larger than the sum of its proper divisors (42571087).

64650225 is a wasteful number, since it uses less digits than its factorization.

64650225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2697 (or 2692 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 64650225 is about 8040.5363627062. The cubic root of 64650225 is about 401.3500735436.

The spelling of 64650225 in words is "sixty-four million, six hundred fifty thousand, two hundred twenty-five".