1680525283 has 4 divisors (see below), whose sum is σ = 1734735808. Its totient is φ = 1626314760.

The previous prime is 1680525271. The next prime is 1680525299. The reversal of 1680525283 is 3825250861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3825250861 = 211 ⋅18129151.

It is a cyclic number.

It is not a de Polignac number, because 1680525283 - 2⁹ = 1680524771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1680525883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27105216 + ... + 27105277.

It is an arithmetic number, because the mean of its divisors is an integer number (433683952).

Almost surely, 2^1680525283 is an apocalyptic number.

1680525283 is a deficient number, since it is larger than the sum of its proper divisors (54210525).

1680525283 is an equidigital number, since it uses as much as digits as its factorization.

1680525283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54210524.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 1680525283 is about 40994.2103595130. The cubic root of 1680525283 is about 1188.9082761004.

The spelling of 1680525283 in words is "one billion, six hundred eighty million, five hundred twenty-five thousand, two hundred eighty-three".