5256644 has 6 divisors (see below), whose sum is σ = 9199134. Its totient is φ = 2628320.

The previous prime is 5256623. The next prime is 5256649. The reversal of 5256644 is 4466525.

It can be written as a sum of positive squares in only one way, i.e., 5244100 + 12544 = 2290^2 + 112^2 .

It is a super-2 number, since 2×5256644² = 55264612285472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5256644.

It is not an unprimeable number, because it can be changed into a prime (5256649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657077 + ... + 657084.

It is an arithmetic number, because the mean of its divisors is an integer number (1533189).

Almost surely, 2^5256644 is an apocalyptic number.

It is an amenable number.

5256644 is a deficient number, since it is larger than the sum of its proper divisors (3942490).

5256644 is a wasteful number, since it uses less digits than its factorization.

5256644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314165 (or 1314163 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

The square root of 5256644 is about 2292.7372287290. The cubic root of 5256644 is about 173.8746179128.

The spelling of 5256644 in words is "five million, two hundred fifty-six thousand, six hundred forty-four".