205253425 has 12 divisors (see below), whose sum is σ = 274092700. Its totient is φ = 151571520.

The previous prime is 205253407. The next prime is 205253429. The reversal of 205253425 is 524352502.

It can be written as a sum of positive squares in 6 ways, for example, as 32672656 + 172580769 = 5716^2 + 13137^2 .

It is not a de Polignac number, because 205253425 - 2²³ = 196864817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 205253393 and 205253402.

It is not an unprimeable number, because it can be changed into a prime (205253429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 315450 + ... + 316099.

Almost surely, 2^205253425 is an apocalyptic number.

205253425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205253425 is a deficient number, since it is larger than the sum of its proper divisors (68839275).

205253425 is a wasteful number, since it uses less digits than its factorization.

205253425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631572 (or 631567 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 205253425 is about 14326.6683147199. The cubic root of 205253425 is about 589.8797274709.

The spelling of 205253425 in words is "two hundred five million, two hundred fifty-three thousand, four hundred twenty-five".