1648481550 has 48 divisors (see below), whose sum is σ = 4145841792. Its totient is φ = 433400800.

The previous prime is 1648481543. The next prime is 1648481561. The reversal of 1648481550 is 551848461.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66744 + ... + 88043.

It is an arithmetic number, because the mean of its divisors is an integer number (86371704).

Almost surely, 2^1648481550 is an apocalyptic number.

1648481550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1648481550 is an abundant number, since it is smaller than the sum of its proper divisors (2497360242).

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

1648481550 is a wasteful number, since it uses less digits than its factorization.

1648481550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154873 (or 154868 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 42.

The square root of 1648481550 is about 40601.4968935876. The cubic root of 1648481550 is about 1181.3031542947.

The spelling of 1648481550 in words is "one billion, six hundred forty-eight million, four hundred eighty-one thousand, five hundred fifty".