5639266 has 4 divisors (see below), whose sum is σ = 8458902. Its totient is φ = 2819632.

The previous prime is 5639261. The next prime is 5639273. The reversal of 5639266 is 6629365.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6629365 = 5 ⋅1325873.

It can be written as a sum of positive squares in only one way, i.e., 3721041 + 1918225 = 1929^2 + 1385^2 .

It is not an unprimeable number, because it can be changed into a prime (5639261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1409815 + ... + 1409818.

Almost surely, 2^5639266 is an apocalyptic number.

5639266 is a deficient number, since it is larger than the sum of its proper divisors (2819636).

5639266 is a wasteful number, since it uses less digits than its factorization.

5639266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819635.

The product of its digits is 58320, while the sum is 37.

The square root of 5639266 is about 2374.7138775019. The cubic root of 5639266 is about 177.9948868623.

Subtracting 5639266 from its reverse (6629365), we obtain a palindrome (990099).

The spelling of 5639266 in words is "five million, six hundred thirty-nine thousand, two hundred sixty-six".