1625022125 has 8 divisors (see below), whose sum is σ = 2028027768. Its totient is φ = 1300017600.

The previous prime is 1625022109. The next prime is 1625022137. The reversal of 1625022125 is 5212205261.

It can be written as a sum of positive squares in 4 ways, for example, as 119814916 + 1505207209 = 10946^2 + 38797^2 .

It is not a de Polignac number, because 1625022125 - 2⁴ = 1625022109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1625022094 and 1625022103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6499964 + ... + 6500213.

It is an arithmetic number, because the mean of its divisors is an integer number (253503471).

Almost surely, 2^1625022125 is an apocalyptic number.

It is an amenable number.

1625022125 is a deficient number, since it is larger than the sum of its proper divisors (403005643).

1625022125 is an equidigital number, since it uses as much as digits as its factorization.

1625022125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13000192 (or 13000182 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1625022125 is about 40311.5631674089. The cubic root of 1625022125 is about 1175.6726795572.

Adding to 1625022125 its reverse (5212205261), we get a palindrome (6837227386).

The spelling of 1625022125 in words is "one billion, six hundred twenty-five million, twenty-two thousand, one hundred twenty-five".