5256649 has 2 divisors, whose sum is σ = 5256650. Its totient is φ = 5256648.

The previous prime is 5256623. The next prime is 5256653. The reversal of 5256649 is 9466525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3027600 + 2229049 = 1740^2 + 1493^2 .

It is a cyclic number.

It is not a de Polignac number, because 5256649 - 2⁹ = 5256137 is a prime.

It is not a weakly prime, because it can be changed into another prime (5256679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2628324 + 2628325.

It is an arithmetic number, because the mean of its divisors is an integer number (2628325).

Almost surely, 2^5256649 is an apocalyptic number.

It is an amenable number.

5256649 is a deficient number, since it is larger than the sum of its proper divisors (1).

5256649 is an equidigital number, since it uses as much as digits as its factorization.

5256649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 37.

The square root of 5256649 is about 2292.7383191285. The cubic root of 5256649 is about 173.8746730413.

The spelling of 5256649 in words is "five million, two hundred fifty-six thousand, six hundred forty-nine".