255533588690 has 128 divisors (see below), whose sum is σ = 525309235200. Its totient is φ = 88927027200.

The previous prime is 255533588683. The next prime is 255533588699. The reversal of 255533588690 is 96885335552.

It is a happy number.

It is a super-2 number, since 2×255533588690² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255533588699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 164966036 + ... + 164967584.

It is an arithmetic number, because the mean of its divisors is an integer number (4103978400).

Almost surely, 2^255533588690 is an apocalyptic number.

255533588690 is an abundant number, since it is smaller than the sum of its proper divisors (269775646510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255533588690 is a wasteful number, since it uses less digits than its factorization.

255533588690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2988.

The product of its (nonzero) digits is 38880000, while the sum is 59.

The spelling of 255533588690 in words is "two hundred fifty-five billion, five hundred thirty-three million, five hundred eighty-eight thousand, six hundred ninety".