5515646 has 8 divisors (see below), whose sum is σ = 8310600. Its totient is φ = 2745448.

The previous prime is 5515637. The next prime is 5515649. The reversal of 5515646 is 6465155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5515649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5621 + ... + 6528.

It is an arithmetic number, because the mean of its divisors is an integer number (1038825).

Almost surely, 2^5515646 is an apocalyptic number.

5515646 is a deficient number, since it is larger than the sum of its proper divisors (2794954).

5515646 is a wasteful number, since it uses less digits than its factorization.

5515646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12378.

The product of its digits is 18000, while the sum is 32.

The square root of 5515646 is about 2348.5412493716. The cubic root of 5515646 is about 176.6846396018.

The spelling of 5515646 in words is "five million, five hundred fifteen thousand, six hundred forty-six".