250021241 has 2 divisors, whose sum is σ = 250021242. Its totient is φ = 250021240.

The previous prime is 250021199. The next prime is 250021259. The reversal of 250021241 is 142120052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243235216 + 6786025 = 15596^2 + 2605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-250021241 is a prime.

It is not a weakly prime, because it can be changed into another prime (250011241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125010620 + 125010621.

It is an arithmetic number, because the mean of its divisors is an integer number (125010621).

Almost surely, 2^250021241 is an apocalyptic number.

It is an amenable number.

250021241 is a deficient number, since it is larger than the sum of its proper divisors (1).

250021241 is an equidigital number, since it uses as much as digits as its factorization.

250021241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 250021241 is about 15812.0599859727. The cubic root of 250021241 is about 629.9783657642.

Adding to 250021241 its reverse (142120052), we get a palindrome (392141293).

The spelling of 250021241 in words is "two hundred fifty million, twenty-one thousand, two hundred forty-one".