5515000 has 40 divisors (see below), whose sum is σ = 12933360. Its totient is φ = 2204000.

The previous prime is 5514991. The next prime is 5515001. The reversal of 5515000 is 5155.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5515001) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 4449 + ... + 5551.

It is an arithmetic number, because the mean of its divisors is an integer number (323334).

Almost surely, 2^5515000 is an apocalyptic number.

5515000 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 5515000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6466680).

5515000 is an abundant number, since it is smaller than the sum of its proper divisors (7418360).

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

5515000 is a wasteful number, since it uses less digits than its factorization.

5515000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129 (or 1110 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 16.

The square root of 5515000 is about 2348.4037131635. The cubic root of 5515000 is about 176.6777414837.

The spelling of 5515000 in words is "five million, five hundred fifteen thousand".