5561100 has 108 divisors (see below), whose sum is σ = 18009264. Its totient is φ = 1434240.

The previous prime is 5561099. The next prime is 5561119. The reversal of 5561100 is 11655.

5561100 = 93² + 94² + ... + 259².

5561100 is a `hidden beast` number, since 5 + 561 + 100 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 33217 + ... + 33383.

Almost surely, 2^5561100 is an apocalyptic number.

5561100 is a gapful number since it is divisible by the number (50) 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 5561100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9004632).

5561100 is an abundant number, since it is smaller than the sum of its proper divisors (12448164).

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

5561100 is a wasteful number, since it uses less digits than its factorization.

5561100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 5561100 is about 2358.1984649304. The cubic root of 5561100 is about 177.1686604551.

Adding to 5561100 its reverse (11655), we get a palindrome (5572755).

The spelling of 5561100 in words is "five million, five hundred sixty-one thousand, one hundred".