64776325 has 6 divisors (see below), whose sum is σ = 80322674. Its totient is φ = 51821040.

The previous prime is 64776311. The next prime is 64776347. The reversal of 64776325 is 52367746.

64776325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 17455684 + 47320641 = 4178^2 + 6879^2 .

It is not a de Polignac number, because 64776325 - 2⁷ = 64776197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1295502 + ... + 1295551.

Almost surely, 2^64776325 is an apocalyptic number.

It is an amenable number.

64776325 is a deficient number, since it is larger than the sum of its proper divisors (15546349).

64776325 is a wasteful number, since it uses less digits than its factorization.

64776325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591063 (or 2591058 counting only the distinct ones).

The product of its digits is 211680, while the sum is 40.

The square root of 64776325 is about 8048.3740593986. The cubic root of 64776325 is about 401.6108479640.

The spelling of 64776325 in words is "sixty-four million, seven hundred seventy-six thousand, three hundred twenty-five".