649025048 has 64 divisors (see below), whose sum is σ = 1476221760. Its totient is φ = 261144576.

The previous prime is 649025011. The next prime is 649025059. The reversal of 649025048 is 840520946.

649025048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 640190 + ... + 641202.

It is an arithmetic number, because the mean of its divisors is an integer number (23065965).

Almost surely, 2^649025048 is an apocalyptic number.

649025048 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 649025048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (738110880).

649025048 is an abundant number, since it is smaller than the sum of its proper divisors (827196712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

649025048 is a wasteful number, since it uses less digits than its factorization.

649025048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716 (or 1712 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 649025048 is about 25475.9700109731. The cubic root of 649025048 is about 865.8057903920.

The spelling of 649025048 in words is "six hundred forty-nine million, twenty-five thousand, forty-eight".