5515966 has 16 divisors (see below), whose sum is σ = 8755200. Its totient is φ = 2599128.

The previous prime is 5515963. The next prime is 5515981. The reversal of 5515966 is 6695155.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5515963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14211 + ... + 14593.

It is an arithmetic number, because the mean of its divisors is an integer number (547200).

Almost surely, 2^5515966 is an apocalyptic number.

5515966 is a deficient number, since it is larger than the sum of its proper divisors (3239234).

5515966 is a wasteful number, since it uses less digits than its factorization.

5515966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783.

The product of its digits is 40500, while the sum is 37.

The square root of 5515966 is about 2348.6093757796. The cubic root of 5515966 is about 176.6880564268.

It can be divided in two parts, 55159 and 66, that added together give a square (55225 = 235²).

The spelling of 5515966 in words is "five million, five hundred fifteen thousand, nine hundred sixty-six".