442051254224249 has 2 divisors, whose sum is σ = 442051254224250. Its totient is φ = 442051254224248.

The previous prime is 442051254224143. The next prime is 442051254224299. The reversal of 442051254224249 is 942422452150244.

It is an a-pointer prime, because the next prime (442051254224299) can be obtained adding 442051254224249 to its sum of digits (50).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 440146972902400 + 1904281321849 = 20979680^2 + 1379957^2 .

It is a cyclic number.

It is not a de Polignac number, because 442051254224249 - 2¹² = 442051254220153 is a prime.

It is a super-2 number, since 2×442051254224249² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 442051254224197 and 442051254224206.

It is not a weakly prime, because it can be changed into another prime (442051254224299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221025627112124 + 221025627112125.

It is an arithmetic number, because the mean of its divisors is an integer number (221025627112125).

Almost surely, 2^{442051254224249} is an apocalyptic number.

It is an amenable number.

442051254224249 is a deficient number, since it is larger than the sum of its proper divisors (1).

442051254224249 is an equidigital number, since it uses as much as digits as its factorization.

442051254224249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7372800, while the sum is 50.

The spelling of 442051254224249 in words is "four hundred forty-two trillion, fifty-one billion, two hundred fifty-four million, two hundred twenty-four thousand, two hundred forty-nine".