648522848 has 48 divisors (see below), whose sum is σ = 1293929280. Its totient is φ = 319939200.

The previous prime is 648522841. The next prime is 648522857. The reversal of 648522848 is 848225846.

It is a happy number.

It is a super-2 number, since 2×648522848² = 841163768756062208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648522841) 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, 938183 + ... + 938873.

It is an arithmetic number, because the mean of its divisors is an integer number (26956860).

Almost surely, 2^648522848 is an apocalyptic number.

It is an amenable number.

648522848 is a deficient number, since it is larger than the sum of its proper divisors (645406432).

648522848 is a wasteful number, since it uses less digits than its factorization.

648522848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051 (or 1043 counting only the distinct ones).

The product of its digits is 983040, while the sum is 47.

The square root of 648522848 is about 25466.1117566071. Note that the first 3 decimals coincide. The cubic root of 648522848 is about 865.5824195244.

The spelling of 648522848 in words is "six hundred forty-eight million, five hundred twenty-two thousand, eight hundred forty-eight".