206130625 has 20 divisors (see below), whose sum is σ = 265914880. Its totient is φ = 159570000.

The previous prime is 206130619. The next prime is 206130643. The reversal of 206130625 is 526031602.

It is not a de Polignac number, because 206130625 - 2²⁵ = 172576193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 206130625.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14056 + ... + 24694.

It is an arithmetic number, because the mean of its divisors is an integer number (13295744).

Almost surely, 2^206130625 is an apocalyptic number.

206130625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

206130625 is a deficient number, since it is larger than the sum of its proper divisors (59784255).

206130625 is an equidigital number, since it uses as much as digits as its factorization.

206130625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10690 (or 10675 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 206130625 is about 14357.2499107594. The cubic root of 206130625 is about 590.7188642660.

The spelling of 206130625 in words is "two hundred six million, one hundred thirty thousand, six hundred twenty-five".