1025225441 has 2 divisors, whose sum is σ = 1025225442. Its totient is φ = 1025225440.

The previous prime is 1025225431. The next prime is 1025225471. The reversal of 1025225441 is 1445225201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 718240000 + 306985441 = 26800^2 + 17521^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1025225441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1025225441.

It is not a weakly prime, because it can be changed into another prime (1025225431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512612720 + 512612721.

It is an arithmetic number, because the mean of its divisors is an integer number (512612721).

Almost surely, 2^1025225441 is an apocalyptic number.

It is an amenable number.

1025225441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025225441 is an equidigital number, since it uses as much as digits as its factorization.

1025225441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1025225441 is about 32019.1417904978. The cubic root of 1025225441 is about 1008.3387522662.

The spelling of 1025225441 in words is "one billion, twenty-five million, two hundred twenty-five thousand, four hundred forty-one".