1251422550353 has 2 divisors, whose sum is σ = 1251422550354. Its totient is φ = 1251422550352.

The previous prime is 1251422550337. The next prime is 1251422550481. The reversal of 1251422550353 is 3530552241521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1142949151744 + 108473398609 = 1069088^2 + 329353^2 .

It is a cyclic number.

It is not a de Polignac number, because 1251422550353 - 2⁴ = 1251422550337 is a prime.

It is not a weakly prime, because it can be changed into another prime (1251422555353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625711275176 + 625711275177.

It is an arithmetic number, because the mean of its divisors is an integer number (625711275177).

Almost surely, 2^{1251422550353} is an apocalyptic number.

It is an amenable number.

1251422550353 is a deficient number, since it is larger than the sum of its proper divisors (1).

1251422550353 is an equidigital number, since it uses as much as digits as its factorization.

1251422550353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180000, while the sum is 38.

Adding to 1251422550353 its reverse (3530552241521), we get a palindrome (4781974791874).

The spelling of 1251422550353 in words is "one trillion, two hundred fifty-one billion, four hundred twenty-two million, five hundred fifty thousand, three hundred fifty-three".