205152455 has 16 divisors (see below), whose sum is σ = 251347008. Its totient is φ = 160704000.

The previous prime is 205152449. The next prime is 205152461. The reversal of 205152455 is 554251502.

It is an interprime number because it is at equal distance from previous prime (205152449) and next prime (205152461).

It is not a de Polignac number, because 205152455 - 2¹⁰ = 205151431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 72110 + ... + 74900.

It is an arithmetic number, because the mean of its divisors is an integer number (15709188).

Almost surely, 2^205152455 is an apocalyptic number.

205152455 is a deficient number, since it is larger than the sum of its proper divisors (46194553).

205152455 is a wasteful number, since it uses less digits than its factorization.

205152455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 205152455 is about 14323.1440333469. The cubic root of 205152455 is about 589.7829853983.

The spelling of 205152455 in words is "two hundred five million, one hundred fifty-two thousand, four hundred fifty-five".