249969007073 has 2 divisors, whose sum is σ = 249969007074. Its totient is φ = 249969007072.

The previous prime is 249969007069. The next prime is 249969007109. The reversal of 249969007073 is 370700969942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230292492544 + 19676514529 = 479888^2 + 140273^2 .

It is a cyclic number.

It is not a de Polignac number, because 249969007073 - 2² = 249969007069 is a prime.

It is not a weakly prime, because it can be changed into another prime (249969007273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124984503536 + 124984503537.

It is an arithmetic number, because the mean of its divisors is an integer number (124984503537).

Almost surely, 2^249969007073 is an apocalyptic number.

It is an amenable number.

249969007073 is a deficient number, since it is larger than the sum of its proper divisors (1).

249969007073 is an equidigital number, since it uses as much as digits as its factorization.

249969007073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5143824, while the sum is 56.

The spelling of 249969007073 in words is "two hundred forty-nine billion, nine hundred sixty-nine million, seven thousand, seventy-three".