206331425 has 12 divisors (see below), whose sum is σ = 262767036. Its totient is φ = 160603200.

The previous prime is 206331407. The next prime is 206331451. The reversal of 206331425 is 524133602.

It can be written as a sum of positive squares in 6 ways, for example, as 150544 + 206180881 = 388^2 + 14359^2 .

It is not a de Polignac number, because 206331425 - 2¹⁶ = 206265889 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 = 206331394 and 206331403.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110606 + ... + 112455.

It is an arithmetic number, because the mean of its divisors is an integer number (21897253).

Almost surely, 2^206331425 is an apocalyptic number.

206331425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

206331425 is a deficient number, since it is larger than the sum of its proper divisors (56435611).

206331425 is a wasteful number, since it uses less digits than its factorization.

206331425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223108 (or 223103 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 206331425 is about 14364.2411912360. The cubic root of 206331425 is about 590.9106162234.

The spelling of 206331425 in words is "two hundred six million, three hundred thirty-one thousand, four hundred twenty-five".