250665601 has 2 divisors, whose sum is σ = 250665602. Its totient is φ = 250665600.

The previous prime is 250665599. The next prime is 250665607. The reversal of 250665601 is 106566052.

250665601 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., 150185025 + 100480576 = 12255^2 + 10024^2 .

It is a cyclic number.

It is not a de Polignac number, because 250665601 - 2¹ = 250665599 is a prime.

Together with 250665599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (250665607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125332800 + 125332801.

It is an arithmetic number, because the mean of its divisors is an integer number (125332801).

Almost surely, 2^250665601 is an apocalyptic number.

It is an amenable number.

250665601 is a deficient number, since it is larger than the sum of its proper divisors (1).

250665601 is an equidigital number, since it uses as much as digits as its factorization.

250665601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 250665601 is about 15832.4224615186. The cubic root of 250665601 is about 630.5190993306.

The spelling of 250665601 in words is "two hundred fifty million, six hundred sixty-five thousand, six hundred one".