5639265 has 24 divisors (see below), whose sum is σ = 9870120. Its totient is φ = 2978304.

The previous prime is 5639261. The next prime is 5639273. The reversal of 5639265 is 5629365.

5639265 = 165² + 166² + ... + 277².

5639265 is a `hidden beast` number, since 563 + 92 + 6 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 603729 + 5035536 = 777^2 + 2244^2 .

It is not a de Polignac number, because 5639265 - 2² = 5639261 is a prime.

It is an Ulam number.

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 in 23 ways as a sum of consecutive naturals, for example, 4531 + ... + 5639.

It is an arithmetic number, because the mean of its divisors is an integer number (411255).

Almost surely, 2^5639265 is an apocalyptic number.

It is an amenable number.

5639265 is a deficient number, since it is larger than the sum of its proper divisors (4230855).

5639265 is a wasteful number, since it uses less digits than its factorization.

5639265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233 (or 1230 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 5639265 is about 2374.7136669502. The cubic root of 5639265 is about 177.9948763412.

Adding to 5639265 its product of digits (48600), we get a palindrome (5687865).

The spelling of 5639265 in words is "five million, six hundred thirty-nine thousand, two hundred sixty-five".