249291451108559 has 2 divisors, whose sum is σ = 249291451108560. Its totient is φ = 249291451108558.

The previous prime is 249291451108523. The next prime is 249291451108589. The reversal of 249291451108559 is 955801154192942.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 249291451108559 - 2¹² = 249291451104463 is a prime.

It is a super-2 number, since 2×249291451108559² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 249291451108495 and 249291451108504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249291451108519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124645725554279 + 124645725554280.

It is an arithmetic number, because the mean of its divisors is an integer number (124645725554280).

Almost surely, 2^{249291451108559} is an apocalyptic number.

249291451108559 is a deficient number, since it is larger than the sum of its proper divisors (1).

249291451108559 is an equidigital number, since it uses as much as digits as its factorization.

249291451108559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656000, while the sum is 65.

The spelling of 249291451108559 in words is "two hundred forty-nine trillion, two hundred ninety-one billion, four hundred fifty-one million, one hundred eight thousand, five hundred fifty-nine".