249582433913 has 2 divisors, whose sum is σ = 249582433914. Its totient is φ = 249582433912.

The previous prime is 249582433901. The next prime is 249582433927. The reversal of 249582433913 is 319334285942.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 226949337664 + 22633096249 = 476392^2 + 150443^2 .

It is a cyclic number.

It is not a de Polignac number, because 249582433913 - 2¹⁶ = 249582368377 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (249582433813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124791216956 + 124791216957.

It is an arithmetic number, because the mean of its divisors is an integer number (124791216957).

Almost surely, 2^249582433913 is an apocalyptic number.

It is an amenable number.

249582433913 is a deficient number, since it is larger than the sum of its proper divisors (1).

249582433913 is an equidigital number, since it uses as much as digits as its factorization.

249582433913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5598720, while the sum is 53.

The spelling of 249582433913 in words is "two hundred forty-nine billion, five hundred eighty-two million, four hundred thirty-three thousand, nine hundred thirteen".