3550561000 has 128 divisors (see below), whose sum is σ = 9657273600. Its totient is φ = 1196563200.

The previous prime is 3550560929. The next prime is 3550561039. The reversal of 3550561000 is 1650553.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 408702 + ... + 417298.

It is an arithmetic number, because the mean of its divisors is an integer number (75447450).

Almost surely, 2^3550561000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3550561000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4828636800).

3550561000 is an abundant number, since it is smaller than the sum of its proper divisors (6106712600).

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

3550561000 is a wasteful number, since it uses less digits than its factorization.

3550561000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8684 (or 8670 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 3550561000 is about 59586.5840605081. The cubic root of 3550561000 is about 1525.5706544809.

The spelling of 3550561000 in words is "three billion, five hundred fifty million, five hundred sixty-one thousand".