64770250 has 24 divisors (see below), whose sum is σ = 121488588. Its totient is φ = 25857200.

The previous prime is 64770229. The next prime is 64770263. The reversal of 64770250 is 5207746.

64770250 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 6 ways, for example, as 15896169 + 48874081 = 3987^2 + 6991^2 .

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 11 ways as a sum of consecutive naturals, for example, 126996 + ... + 127504.

Almost surely, 2^64770250 is an apocalyptic number.

64770250 is a deficient number, since it is larger than the sum of its proper divisors (56718338).

64770250 is an frugal number, since it uses more digits than its factorization.

64770250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 64770250 is about 8047.9966451285. The cubic root of 64770250 is about 401.5982926455.

Adding to 64770250 its reverse (5207746), we get a palindrome (69977996).

The spelling of 64770250 in words is "sixty-four million, seven hundred seventy thousand, two hundred fifty".