64235825 has 12 divisors (see below), whose sum is σ = 80476620. Its totient is φ = 50856960.

The previous prime is 64235777. The next prime is 64235833. The reversal of 64235825 is 52853246.

It can be written as a sum of positive squares in 6 ways, for example, as 5973136 + 58262689 = 2444^2 + 7633^2 .

It is not a de Polignac number, because 64235825 - 2⁸ = 64235569 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10820 + ... + 15669.

It is an arithmetic number, because the mean of its divisors is an integer number (6706385).

Almost surely, 2^64235825 is an apocalyptic number.

It is an amenable number.

64235825 is a deficient number, since it is larger than the sum of its proper divisors (16240795).

64235825 is a wasteful number, since it uses less digits than its factorization.

64235825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26596 (or 26591 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 64235825 is about 8014.7255099598. The cubic root of 64235825 is about 400.4906998713.

The spelling of 64235825 in words is "sixty-four million, two hundred thirty-five thousand, eight hundred twenty-five".