1600000625 has 20 divisors (see below), whose sum is σ = 2002562100. Its totient is φ = 1277952000.

The previous prime is 1600000609. The next prime is 1600000627. The reversal of 1600000625 is 5260000061.

It can be written as a sum of positive squares in 10 ways, for example, as 1367224576 + 232776049 = 36976^2 + 15257^2 .

It is a sliding number, since 1600000625 = 625 + 1600000000 and 1/625 + 1/1600000000 = 0.001600000625.

It is not a de Polignac number, because 1600000625 - 2⁴ = 1600000609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1600000597 and 1600000606.

It is not an unprimeable number, because it can be changed into a prime (1600000627) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 478961 + ... + 482289.

It is an arithmetic number, because the mean of its divisors is an integer number (100128105).

Almost surely, 2^1600000625 is an apocalyptic number.

It is an amenable number.

1600000625 is a deficient number, since it is larger than the sum of its proper divisors (402561475).

1600000625 is an frugal number, since it uses more digits than its factorization.

1600000625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4118 (or 4103 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1600000625 is about 40000.0078124992. The cubic root of 1600000625 is about 1169.6072475777.

Adding to 1600000625 its reverse (5260000061), we get a palindrome (6860000686).

It can be divided in two parts, 1600000 and 625, that multiplied together give a 9-th power (1000000000 = 10⁹).

The spelling of 1600000625 in words is "one billion, six hundred million, six hundred twenty-five", and thus it is an aban number.