550961680 has 40 divisors (see below), whose sum is σ = 1282018392. Its totient is φ = 220207104.

The previous prime is 550961669. The next prime is 550961689. The reversal of 550961680 is 86169055.

It can be written as a sum of positive squares in 4 ways, for example, as 15872256 + 535089424 = 3984^2 + 23132^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (550961689) 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, 148002 + ... + 151678.

Almost surely, 2^550961680 is an apocalyptic number.

It is an amenable number.

550961680 is an abundant number, since it is smaller than the sum of its proper divisors (731056712).

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

550961680 is a wasteful number, since it uses less digits than its factorization.

550961680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5563 (or 5557 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 550961680 is about 23472.5729309763. The cubic root of 550961680 is about 819.7985227787.

The spelling of 550961680 in words is "five hundred fifty million, nine hundred sixty-one thousand, six hundred eighty".