25450193 has 2 divisors, whose sum is σ = 25450194. Its totient is φ = 25450192.

The previous prime is 25450157. The next prime is 25450211. The reversal of 25450193 is 39105452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22963264 + 2486929 = 4792^2 + 1577^2 .

It is a cyclic number.

It is not a de Polignac number, because 25450193 - 2¹² = 25446097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (25450153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12725096 + 12725097.

It is an arithmetic number, because the mean of its divisors is an integer number (12725097).

Almost surely, 2^25450193 is an apocalyptic number.

It is an amenable number.

25450193 is a deficient number, since it is larger than the sum of its proper divisors (1).

25450193 is an equidigital number, since it uses as much as digits as its factorization.

25450193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 25450193 is about 5044.8184308258. The cubic root of 25450193 is about 294.1465055676.

The spelling of 25450193 in words is "twenty-five million, four hundred fifty thousand, one hundred ninety-three".