5515380 has 72 divisors (see below), whose sum is σ = 18024552. Its totient is φ = 1357056.

The previous prime is 5515357. The next prime is 5515397. The reversal of 5515380 is 835155.

It can be written as a sum of positive squares in 4 ways, for example, as 11664 + 5503716 = 108^2 + 2346^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1162 + ... + 3518.

It is an arithmetic number, because the mean of its divisors is an integer number (250341).

Almost surely, 2^5515380 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 5515380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9012276).

5515380 is an abundant number, since it is smaller than the sum of its proper divisors (12509172).

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

5515380 is a wasteful number, since it uses less digits than its factorization.

5515380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2385 (or 2380 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 5515380 is about 2348.4846177908. The cubic root of 5515380 is about 176.6817992654.

The spelling of 5515380 in words is "five million, five hundred fifteen thousand, three hundred eighty".