1528240625 has 24 divisors (see below), whose sum is σ = 1941735096. Its totient is φ = 1202400000.

The previous prime is 1528240583. The next prime is 1528240633. The reversal of 1528240625 is 5260428251.

It can be written as a sum of positive squares in 12 ways, for example, as 1452219664 + 76020961 = 38108^2 + 8719^2 .

It is not a de Polignac number, because 1528240625 - 2⁸ = 1528240369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 186617 + ... + 194633.

It is an arithmetic number, because the mean of its divisors is an integer number (80905629).

Almost surely, 2^1528240625 is an apocalyptic number.

It is an amenable number.

1528240625 is a deficient number, since it is larger than the sum of its proper divisors (413494471).

1528240625 is an frugal number, since it uses more digits than its factorization.

1528240625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8103 (or 8083 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 1528240625 is about 39092.7183117265. The cubic root of 1528240625 is about 1151.8535012656.

Adding to 1528240625 its reverse (5260428251), we get a palindrome (6788668876).

The spelling of 1528240625 in words is "one billion, five hundred twenty-eight million, two hundred forty thousand, six hundred twenty-five".