1725812222401 has 2 divisors, whose sum is σ = 1725812222402. Its totient is φ = 1725812222400.

The previous prime is 1725812222363. The next prime is 1725812222447. The reversal of 1725812222401 is 1042222185271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1672508495025 + 53303727376 = 1293255^2 + 230876^2 .

It is a cyclic number.

It is not a de Polignac number, because 1725812222401 - 2²⁵ = 1725778667969 is a prime.

It is not a weakly prime, because it can be changed into another prime (1725812222461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 862906111200 + 862906111201.

It is an arithmetic number, because the mean of its divisors is an integer number (862906111201).

Almost surely, 2^{1725812222401} is an apocalyptic number.

It is an amenable number.

1725812222401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1725812222401 is an equidigital number, since it uses as much as digits as its factorization.

1725812222401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35840, while the sum is 37.

The spelling of 1725812222401 in words is "one trillion, seven hundred twenty-five billion, eight hundred twelve million, two hundred twenty-two thousand, four hundred one".