1025865317 has 4 divisors (see below), whose sum is σ = 1027368000. Its totient is φ = 1024362636.

The previous prime is 1025865259. The next prime is 1025865329. The reversal of 1025865317 is 7135685201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1025865317 - 2¹⁰ = 1025864293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025865377) 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 in 3 ways as a sum of consecutive naturals, for example, 750317 + ... + 751682.

It is an arithmetic number, because the mean of its divisors is an integer number (256842000).

Almost surely, 2^1025865317 is an apocalyptic number.

It is an amenable number.

1025865317 is a deficient number, since it is larger than the sum of its proper divisors (1502683).

1025865317 is an equidigital number, since it uses as much as digits as its factorization.

1025865317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502682.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 1025865317 is about 32029.1323173139. The cubic root of 1025865317 is about 1008.5484874638.

The spelling of 1025865317 in words is "one billion, twenty-five million, eight hundred sixty-five thousand, three hundred seventeen".