64825985 has 8 divisors (see below), whose sum is σ = 88904256. Its totient is φ = 44452080.

The previous prime is 64825963. The next prime is 64825987. The reversal of 64825985 is 58952846.

64825985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-64825985 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64825987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 926051 + ... + 926120.

It is an arithmetic number, because the mean of its divisors is an integer number (11113032).

Almost surely, 2^64825985 is an apocalyptic number.

It is an amenable number.

64825985 is a deficient number, since it is larger than the sum of its proper divisors (24078271).

64825985 is a wasteful number, since it uses less digits than its factorization.

64825985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852183.

The product of its digits is 691200, while the sum is 47.

The square root of 64825985 is about 8051.4585635151. The cubic root of 64825985 is about 401.7134518103.

The spelling of 64825985 in words is "sixty-four million, eight hundred twenty-five thousand, nine hundred eighty-five".