205235502255 has 48 divisors (see below), whose sum is σ = 406790130240. Its totient is φ = 93769242624.

The previous prime is 205235502253. The next prime is 205235502271. The reversal of 205235502255 is 552205532502.

205235502255 is a `hidden beast` number, since 2 + 0 + 52 + 3 + 550 + 2 + 2 + 55 = 666.

It is not a de Polignac number, because 205235502255 - 2¹ = 205235502253 is a prime.

It is a super-2 number, since 2×205235502255² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205235502253) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 381439 + ... + 745631.

It is an arithmetic number, because the mean of its divisors is an integer number (8474794380).

Almost surely, 2^205235502255 is an apocalyptic number.

205235502255 is a deficient number, since it is larger than the sum of its proper divisors (201554627985).

205235502255 is a wasteful number, since it uses less digits than its factorization.

205235502255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366000 (or 365997 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 36.

The spelling of 205235502255 in words is "two hundred five billion, two hundred thirty-five million, five hundred two thousand, two hundred fifty-five".