1525252625 has 16 divisors (see below), whose sum is σ = 2049941712. Its totient is φ = 1126339200.

The previous prime is 1525252621. The next prime is 1525252633. The reversal of 1525252625 is 5262525251.

It can be written as a sum of positive squares in 8 ways, for example, as 1140818176 + 384434449 = 33776^2 + 19607^2 .

It is not a de Polignac number, because 1525252625 - 2² = 1525252621 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1525252621) 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 15 ways as a sum of consecutive naturals, for example, 467684 + ... + 470933.

It is an arithmetic number, because the mean of its divisors is an integer number (128121357).

Almost surely, 2^1525252625 is an apocalyptic number.

It is an amenable number.

1525252625 is a deficient number, since it is larger than the sum of its proper divisors (524689087).

1525252625 is an equidigital number, since it uses as much as digits as its factorization.

1525252625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938645 (or 938635 counting only the distinct ones).

The product of its digits is 60000, while the sum is 35.

The square root of 1525252625 is about 39054.4827772690. The cubic root of 1525252625 is about 1151.1023141972.

Adding to 1525252625 its reverse (5262525251), we get a palindrome (6787777876).

The spelling of 1525252625 in words is "one billion, five hundred twenty-five million, two hundred fifty-two thousand, six hundred twenty-five".