250869001 has 2 divisors, whose sum is σ = 250869002. Its totient is φ = 250869000.

The previous prime is 250868993. The next prime is 250869011. The reversal of 250869001 is 100968052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127125625 + 123743376 = 11275^2 + 11124^2 .

It is a cyclic number.

It is not a de Polignac number, because 250869001 - 2³ = 250868993 is a prime.

It is not a weakly prime, because it can be changed into another prime (250869011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125434500 + 125434501.

It is an arithmetic number, because the mean of its divisors is an integer number (125434501).

Almost surely, 2^250869001 is an apocalyptic number.

It is an amenable number.

250869001 is a deficient number, since it is larger than the sum of its proper divisors (1).

250869001 is an equidigital number, since it uses as much as digits as its factorization.

250869001 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 31.

The square root of 250869001 is about 15838.8446864031. The cubic root of 250869001 is about 630.6895959491.

The spelling of 250869001 in words is "two hundred fifty million, eight hundred sixty-nine thousand, one".