3125003125 has 24 divisors (see below), whose sum is σ = 3945075624. Its totient is φ = 2475000000.

The previous prime is 3125003111. The next prime is 3125003129. The reversal of 3125003125 is 5213005213.

It can be written as a sum of positive squares in 12 ways, for example, as 2061069201 + 1063933924 = 45399^2 + 32618^2 .

It is not a de Polignac number, because 3125003125 - 2⁹ = 3125002613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3125003096 and 3125003105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3125003129) 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 23 ways as a sum of consecutive naturals, for example, 310675 + ... + 320575.

It is an arithmetic number, because the mean of its divisors is an integer number (164378151).

Almost surely, 2^3125003125 is an apocalyptic number.

It is an amenable number.

3125003125 is a deficient number, since it is larger than the sum of its proper divisors (820072499).

3125003125 is an frugal number, since it uses more digits than its factorization.

3125003125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10027 (or 10007 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 3125003125 is about 55901.7273883375. The cubic root of 3125003125 is about 1462.0093564426.

Adding to 3125003125 its reverse (5213005213), we get a palindrome (8338008338).

It can be divided in two parts, 312500 and 3125, that multiplied together give a square (976562500 = 31250²).

The spelling of 3125003125 in words is "three billion, one hundred twenty-five million, three thousand, one hundred twenty-five".