250939613 has 2 divisors, whose sum is σ = 250939614. Its totient is φ = 250939612.

The previous prime is 250939607. The next prime is 250939649. The reversal of 250939613 is 316939052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130005604 + 120934009 = 11402^2 + 10997^2 .

It is a cyclic number.

It is not a de Polignac number, because 250939613 - 2¹⁴ = 250923229 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250939603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125469806 + 125469807.

It is an arithmetic number, because the mean of its divisors is an integer number (125469807).

Almost surely, 2^250939613 is an apocalyptic number.

It is an amenable number.

250939613 is a deficient number, since it is larger than the sum of its proper divisors (1).

250939613 is an equidigital number, since it uses as much as digits as its factorization.

250939613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 250939613 is about 15841.0736062932. The cubic root of 250939613 is about 630.7487637165.

The spelling of 250939613 in words is "two hundred fifty million, nine hundred thirty-nine thousand, six hundred thirteen".