1725050321 has 2 divisors, whose sum is σ = 1725050322. Its totient is φ = 1725050320.

The previous prime is 1725050317. The next prime is 1725050323. The reversal of 1725050321 is 1230505271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1629010321 + 96040000 = 40361^2 + 9800^2 .

It is a cyclic number.

It is not a de Polignac number, because 1725050321 - 2² = 1725050317 is a prime.

Together with 1725050323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1725050323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 862525160 + 862525161.

It is an arithmetic number, because the mean of its divisors is an integer number (862525161).

Almost surely, 2^1725050321 is an apocalyptic number.

It is an amenable number.

1725050321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1725050321 is an equidigital number, since it uses as much as digits as its factorization.

1725050321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 1725050321 is about 41533.7251038238. The cubic root of 1725050321 is about 1199.3168150576.

Adding to 1725050321 its reverse (1230505271), we get a palindrome (2955555592).

The spelling of 1725050321 in words is "one billion, seven hundred twenty-five million, fifty thousand, three hundred twenty-one".