250048021 has 2 divisors, whose sum is σ = 250048022. Its totient is φ = 250048020.

The previous prime is 250047989. The next prime is 250048027. The reversal of 250048021 is 120840052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 242424900 + 7623121 = 15570^2 + 2761^2 .

It is a cyclic number.

It is not a de Polignac number, because 250048021 - 2⁵ = 250047989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 250047983 and 250048001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250048027) 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, 125024010 + 125024011.

It is an arithmetic number, because the mean of its divisors is an integer number (125024011).

Almost surely, 2^250048021 is an apocalyptic number.

It is an amenable number.

250048021 is a deficient number, since it is larger than the sum of its proper divisors (1).

250048021 is an equidigital number, since it uses as much as digits as its factorization.

250048021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 250048021 is about 15812.9067852814. The cubic root of 250048021 is about 630.0008574776. Note that the first 3 decimals are identical.

Adding to 250048021 its reverse (120840052), we get a palindrome (370888073).

The spelling of 250048021 in words is "two hundred fifty million, forty-eight thousand, twenty-one".