5511000 has 128 divisors (see below), whose sum is σ = 18869760. Its totient is φ = 1328000.

The previous prime is 5510977. The next prime is 5511001. The reversal of 5511000 is 1155.

It is a super-2 number, since 2×5511000² = 60742242000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5511001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32917 + ... + 33083.

It is an arithmetic number, because the mean of its divisors is an integer number (147420).

Almost surely, 2^5511000 is an apocalyptic number.

5511000 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 5511000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9434880).

5511000 is an abundant number, since it is smaller than the sum of its proper divisors (13358760).

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

5511000 is a wasteful number, since it uses less digits than its factorization.

5511000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 12.

The square root of 5511000 is about 2347.5519163588. The cubic root of 5511000 is about 176.6350166790.

Adding to 5511000 its reverse (1155), we get a palindrome (5512155).

It can be divided in two parts, 551 and 1000, that added together give a palindrome (1551).

The spelling of 5511000 in words is "five million, five hundred eleven thousand".