1085925859 has 2 divisors, whose sum is σ = 1085925860. Its totient is φ = 1085925858.

The previous prime is 1085925823. The next prime is 1085925871. The reversal of 1085925859 is 9585295801.

It is a strong prime.

It is an emirp because it is prime and its reverse (9585295801) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1085925859 is a prime.

It is not a weakly prime, because it can be changed into another prime (1085925889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542962929 + 542962930.

It is an arithmetic number, because the mean of its divisors is an integer number (542962930).

Almost surely, 2^1085925859 is an apocalyptic number.

1085925859 is a deficient number, since it is larger than the sum of its proper divisors (1).

1085925859 is an equidigital number, since it uses as much as digits as its factorization.

1085925859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296000, while the sum is 52.

The square root of 1085925859 is about 32953.3891883673. The cubic root of 1085925859 is about 1027.8586419988.

The spelling of 1085925859 in words is "one billion, eighty-five million, nine hundred twenty-five thousand, eight hundred fifty-nine".