648827533 has 8 divisors (see below), whose sum is σ = 656623800. Its totient is φ = 641042688.

The previous prime is 648827497. The next prime is 648827549. The reversal of 648827533 is 335728846.

It can be written as a sum of positive squares in 4 ways, for example, as 139287204 + 509540329 = 11802^2 + 22573^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-648827533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648827833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178785 + ... + 182377.

It is an arithmetic number, because the mean of its divisors is an integer number (82077975).

Almost surely, 2^648827533 is an apocalyptic number.

It is an amenable number.

648827533 is a deficient number, since it is larger than the sum of its proper divisors (7796267).

648827533 is a wasteful number, since it uses less digits than its factorization.

648827533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5711.

The product of its digits is 967680, while the sum is 46.

The square root of 648827533 is about 25472.0932198357. The cubic root of 648827533 is about 865.7179524974.

The spelling of 648827533 in words is "six hundred forty-eight million, eight hundred twenty-seven thousand, five hundred thirty-three".