1680850025 has 12 divisors (see below), whose sum is σ = 2084908224. Its totient is φ = 1344258000.

The previous prime is 1680850021. The next prime is 1680850033. The reversal of 1680850025 is 5200580861.

It is a happy number.

It is not a de Polignac number, because 1680850025 - 2² = 1680850021 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1680850021) 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 11 ways as a sum of consecutive naturals, for example, 89180 + ... + 106370.

It is an arithmetic number, because the mean of its divisors is an integer number (173742352).

Almost surely, 2^1680850025 is an apocalyptic number.

It is an amenable number.

1680850025 is a deficient number, since it is larger than the sum of its proper divisors (404058199).

1680850025 is a wasteful number, since it uses less digits than its factorization.

1680850025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21112 (or 21107 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 1680850025 is about 40998.1709957896. The cubic root of 1680850025 is about 1188.9848520751.

The spelling of 1680850025 in words is "one billion, six hundred eighty million, eight hundred fifty thousand, twenty-five".