205015925 has 24 divisors (see below), whose sum is σ = 260340480. Its totient is φ = 160097600.

The previous prime is 205015919. The next prime is 205015931. The reversal of 205015925 is 529510502.

205015925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (205015919) and next prime (205015931).

It is not a de Polignac number, because 205015925 - 2⁸ = 205015669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 475460 + ... + 475890.

It is an arithmetic number, because the mean of its divisors is an integer number (10847520).

Almost surely, 2^205015925 is an apocalyptic number.

205015925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205015925 is a deficient number, since it is larger than the sum of its proper divisors (55324555).

205015925 is a wasteful number, since it uses less digits than its factorization.

205015925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853 (or 848 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 205015925 is about 14318.3771775994. The cubic root of 205015925 is about 589.6521218406.

The spelling of 205015925 in words is "two hundred five million, fifteen thousand, nine hundred twenty-five".