1925117489 has 2 divisors, whose sum is σ = 1925117490. Its totient is φ = 1925117488.

The previous prime is 1925117471. The next prime is 1925117507. The reversal of 1925117489 is 9847115291.

It is a balanced prime because it is at equal distance from previous prime (1925117471) and next prime (1925117507).

It can be written as a sum of positive squares in only one way, i.e., 1301766400 + 623351089 = 36080^2 + 24967^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1925117489 is a prime.

It is not a weakly prime, because it can be changed into another prime (1925117989) 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, 962558744 + 962558745.

It is an arithmetic number, because the mean of its divisors is an integer number (962558745).

Almost surely, 2^1925117489 is an apocalyptic number.

It is an amenable number.

1925117489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1925117489 is an equidigital number, since it uses as much as digits as its factorization.

1925117489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 47.

The square root of 1925117489 is about 43876.1608279485. The cubic root of 1925117489 is about 1243.9962747120.

The spelling of 1925117489 in words is "one billion, nine hundred twenty-five million, one hundred seventeen thousand, four hundred eighty-nine".