1528895825 has 6 divisors (see below), whose sum is σ = 1895830854. Its totient is φ = 1223116640.

The previous prime is 1528895821. The next prime is 1528895843. The reversal of 1528895825 is 5285988251.

It can be written as a sum of positive squares in 3 ways, for example, as 469848976 + 1059046849 = 21676^2 + 32543^2 .

It is not a de Polignac number, because 1528895825 - 2² = 1528895821 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1528895821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30577892 + ... + 30577941.

It is an arithmetic number, because the mean of its divisors is an integer number (315971809).

Almost surely, 2^1528895825 is an apocalyptic number.

It is an amenable number.

1528895825 is a deficient number, since it is larger than the sum of its proper divisors (366935029).

1528895825 is an equidigital number, since it uses as much as digits as its factorization.

1528895825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61155843 (or 61155838 counting only the distinct ones).

The product of its digits is 2304000, while the sum is 53.

The square root of 1528895825 is about 39101.0974909912. The cubic root of 1528895825 is about 1152.0180884767.

The spelling of 1528895825 in words is "one billion, five hundred twenty-eight million, eight hundred ninety-five thousand, eight hundred twenty-five".