648033956 has 12 divisors (see below), whose sum is σ = 1135164492. Its totient is φ = 323701248.

The previous prime is 648033949. The next prime is 648033959. The reversal of 648033956 is 659330846.

It can be written as a sum of positive squares in 2 ways, for example, as 412902400 + 235131556 = 20320^2 + 15334^2 .

It is not an unprimeable number, because it can be changed into a prime (648033959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74285 + ... + 82548.

It is an arithmetic number, because the mean of its divisors is an integer number (94597041).

Almost surely, 2^648033956 is an apocalyptic number.

It is an amenable number.

648033956 is a deficient number, since it is larger than the sum of its proper divisors (487130536).

648033956 is a wasteful number, since it uses less digits than its factorization.

648033956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157870 (or 157868 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 44.

The square root of 648033956 is about 25456.5110728081. The cubic root of 648033956 is about 865.3648570520.

The spelling of 648033956 in words is "six hundred forty-eight million, thirty-three thousand, nine hundred fifty-six".