64366825 has 12 divisors (see below), whose sum is σ = 80941248. Its totient is φ = 50766800.

The previous prime is 64366823. The next prime is 64366831. The reversal of 64366825 is 52866346.

It is a happy number.

It is not a de Polignac number, because 64366825 - 2¹ = 64366823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64366823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16357 + ... + 19906.

It is an arithmetic number, because the mean of its divisors is an integer number (6745104).

Almost surely, 2^64366825 is an apocalyptic number.

It is an amenable number.

64366825 is a deficient number, since it is larger than the sum of its proper divisors (16574423).

64366825 is a wasteful number, since it uses less digits than its factorization.

64366825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36344 (or 36339 counting only the distinct ones).

The product of its digits is 207360, while the sum is 40.

The square root of 64366825 is about 8022.8938046069. The cubic root of 64366825 is about 400.7627633058.

The spelling of 64366825 in words is "sixty-four million, three hundred sixty-six thousand, eight hundred twenty-five".