5538866 has 4 divisors (see below), whose sum is σ = 8308302. Its totient is φ = 2769432.

The previous prime is 5538859. The next prime is 5538877. The reversal of 5538866 is 6688355.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6688355 = 5 ⋅1337671.

It can be written as a sum of positive squares in only one way, i.e., 4264225 + 1274641 = 2065^2 + 1129^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1384715 + ... + 1384718.

Almost surely, 2^5538866 is an apocalyptic number.

5538866 is a deficient number, since it is larger than the sum of its proper divisors (2769436).

5538866 is a wasteful number, since it uses less digits than its factorization.

5538866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2769435.

The product of its digits is 172800, while the sum is 41.

The square root of 5538866 is about 2353.4795516426. The cubic root of 5538866 is about 176.9322306446.

The spelling of 5538866 in words is "five million, five hundred thirty-eight thousand, eight hundred sixty-six".