205553315 has 16 divisors (see below), whose sum is σ = 276363360. Its totient is φ = 145451520.

The previous prime is 205553263. The next prime is 205553321. The reversal of 205553315 is 513355502.

It is not a de Polignac number, because 205553315 - 2¹² = 205549219 is a prime.

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, 48470 + ... + 52539.

It is an arithmetic number, because the mean of its divisors is an integer number (17272710).

Almost surely, 2^205553315 is an apocalyptic number.

205553315 is a deficient number, since it is larger than the sum of its proper divisors (70810045).

205553315 is a wasteful number, since it uses less digits than its factorization.

205553315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101062.

The product of its (nonzero) digits is 11250, while the sum is 29.

The square root of 205553315 is about 14337.1306404036. The cubic root of 205553315 is about 590.1668732230.

The spelling of 205553315 in words is "two hundred five million, five hundred fifty-three thousand, three hundred fifteen".