1028582825 has 12 divisors (see below), whose sum is σ = 1277044380. Its totient is φ = 821832960.

The previous prime is 1028582777. The next prime is 1028582837. The reversal of 1028582825 is 5282858201.

It can be written as a sum of positive squares in 6 ways, for example, as 44129449 + 984453376 = 6643^2 + 31376^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1028582825 is a prime.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 5204 + ... + 45653.

It is an arithmetic number, because the mean of its divisors is an integer number (106420365).

Almost surely, 2^1028582825 is an apocalyptic number.

It is an amenable number.

1028582825 is a deficient number, since it is larger than the sum of its proper divisors (248461555).

1028582825 is an equidigital number, since it uses as much as digits as its factorization.

1028582825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51676 (or 51671 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 41.

The square root of 1028582825 is about 32071.5267020452. The cubic root of 1028582825 is about 1009.4382475616.

The spelling of 1028582825 in words is "one billion, twenty-eight million, five hundred eighty-two thousand, eight hundred twenty-five".