2250649 has 2 divisors, whose sum is σ = 2250650. Its totient is φ = 2250648.

The previous prime is 2250641. The next prime is 2250667. The reversal of 2250649 is 9460522.

2250649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1545049 + 705600 = 1243^2 + 840^2 .

It is a cyclic number.

It is not a de Polignac number, because 2250649 - 2³ = 2250641 is a prime.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (2250641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125324 + 1125325.

It is an arithmetic number, because the mean of its divisors is an integer number (1125325).

2^2250649 is an apocalyptic number.

It is an amenable number.

2250649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2250649 is an equidigital number, since it uses as much as digits as its factorization.

2250649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 2250649 is about 1500.2163177355. The cubic root of 2250649 is about 131.0496674709.

The spelling of 2250649 in words is "two million, two hundred fifty thousand, six hundred forty-nine".