205325715 has 32 divisors (see below), whose sum is σ = 391781376. Its totient is φ = 89781120.

The previous prime is 205325707. The next prime is 205325717. The reversal of 205325715 is 517523502.

It is not a de Polignac number, because 205325715 - 2³ = 205325707 is a prime.

It is a super-2 number, since 2×205325715² = 84317298480522450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (205325717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40096 + ... + 44925.

It is an arithmetic number, because the mean of its divisors is an integer number (12243168).

Almost surely, 2^205325715 is an apocalyptic number.

205325715 is a deficient number, since it is larger than the sum of its proper divisors (186455661).

205325715 is a wasteful number, since it uses less digits than its factorization.

205325715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85059.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 205325715 is about 14329.1910099628. The cubic root of 205325715 is about 589.9489709768.

The spelling of 205325715 in words is "two hundred five million, three hundred twenty-five thousand, seven hundred fifteen".