206380725 has 48 divisors (see below), whose sum is σ = 358560384. Its totient is φ = 104544000.

The previous prime is 206380723. The next prime is 206380747. The reversal of 206380725 is 527083602.

It is not a de Polignac number, because 206380725 - 2¹ = 206380723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206380723) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 311895 + ... + 312555.

It is an arithmetic number, because the mean of its divisors is an integer number (7470008).

Almost surely, 2^206380725 is an apocalyptic number.

206380725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

206380725 is a deficient number, since it is larger than the sum of its proper divisors (152179659).

206380725 is a wasteful number, since it uses less digits than its factorization.

206380725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878 (or 873 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 206380725 is about 14365.9571557206. The cubic root of 206380725 is about 590.9576757434.

The spelling of 206380725 in words is "two hundred six million, three hundred eighty thousand, seven hundred twenty-five".