64764825 has 48 divisors (see below), whose sum is σ = 115230720. Its totient is φ = 31993920.

The previous prime is 64764811. The next prime is 64764827. The reversal of 64764825 is 52846746.

It is not a de Polignac number, because 64764825 - 2¹³ = 64756633 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64764827) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66492 + ... + 67458.

It is an arithmetic number, because the mean of its divisors is an integer number (2400640).

Almost surely, 2^64764825 is an apocalyptic number.

It is an amenable number.

64764825 is a deficient number, since it is larger than the sum of its proper divisors (50465895).

64764825 is a wasteful number, since it uses less digits than its factorization.

64764825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046 (or 1041 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The square root of 64764825 is about 8047.6595976719. The cubic root of 64764825 is about 401.5870800308.

The spelling of 64764825 in words is "sixty-four million, seven hundred sixty-four thousand, eight hundred twenty-five".