255011633 has 4 divisors (see below), whose sum is σ = 255265380. Its totient is φ = 254757888.

The previous prime is 255011609. The next prime is 255011639. The reversal of 255011633 is 336110552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38539264 + 216472369 = 6208^2 + 14713^2 .

It is a cyclic number.

It is not a de Polignac number, because 255011633 - 2¹⁸ = 254749489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255011639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125360 + ... + 127377.

It is an arithmetic number, because the mean of its divisors is an integer number (63816345).

Almost surely, 2^255011633 is an apocalyptic number.

It is an amenable number.

255011633 is a deficient number, since it is larger than the sum of its proper divisors (253747).

255011633 is a wasteful number, since it uses less digits than its factorization.

255011633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253746.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 255011633 is about 15969.0836618762. The cubic root of 255011633 is about 634.1422133516.

The spelling of 255011633 in words is "two hundred fifty-five million, eleven thousand, six hundred thirty-three".