250442563913 has 2 divisors, whose sum is σ = 250442563914. Its totient is φ = 250442563912.

The previous prime is 250442563859. The next prime is 250442563933. The reversal of 250442563913 is 319365244052.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155548993609 + 94893570304 = 394397^2 + 308048^2 .

It is a cyclic number.

It is not a de Polignac number, because 250442563913 - 2¹² = 250442559817 is a prime.

It is not a weakly prime, because it can be changed into another prime (250442563933) 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, 125221281956 + 125221281957.

It is an arithmetic number, because the mean of its divisors is an integer number (125221281957).

Almost surely, 2^250442563913 is an apocalyptic number.

It is an amenable number.

250442563913 is a deficient number, since it is larger than the sum of its proper divisors (1).

250442563913 is an equidigital number, since it uses as much as digits as its factorization.

250442563913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 250442563913 in words is "two hundred fifty billion, four hundred forty-two million, five hundred sixty-three thousand, nine hundred thirteen".