205269955 has 16 divisors (see below), whose sum is σ = 269247744. Its totient is φ = 148992480.

The previous prime is 205269949. The next prime is 205269959. The reversal of 205269955 is 559962502.

205269955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 205269955 - 2¹⁷ = 205138883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205269959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26674 + ... + 33496.

It is an arithmetic number, because the mean of its divisors is an integer number (16827984).

Almost surely, 2^205269955 is an apocalyptic number.

205269955 is a deficient number, since it is larger than the sum of its proper divisors (63977789).

205269955 is a wasteful number, since it uses less digits than its factorization.

205269955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7386.

The product of its (nonzero) digits is 243000, while the sum is 43.

The square root of 205269955 is about 14327.2451992698. The cubic root of 205269955 is about 589.8955622861.

The spelling of 205269955 in words is "two hundred five million, two hundred sixty-nine thousand, nine hundred fifty-five".