64793725 has 6 divisors (see below), whose sum is σ = 80344250. Its totient is φ = 51834960.

The previous prime is 64793717. The next prime is 64793747. The reversal of 64793725 is 52739746.

It can be written as a sum of positive squares in 3 ways, for example, as 13155129 + 51638596 = 3627^2 + 7186^2 .

It is not a de Polignac number, because 64793725 - 2³ = 64793717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1295850 + ... + 1295899.

Almost surely, 2^64793725 is an apocalyptic number.

It is an amenable number.

64793725 is a deficient number, since it is larger than the sum of its proper divisors (15550525).

64793725 is a wasteful number, since it uses less digits than its factorization.

64793725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591759 (or 2591754 counting only the distinct ones).

The product of its digits is 317520, while the sum is 43.

The square root of 64793725 is about 8049.4549504920. The cubic root of 64793725 is about 401.6468045328.

The spelling of 64793725 in words is "sixty-four million, seven hundred ninety-three thousand, seven hundred twenty-five".