255825755790 has 128 divisors (see below), whose sum is σ = 710332001280. Its totient is φ = 58276915200.

The previous prime is 255825755767. The next prime is 255825755791. The reversal of 255825755790 is 97557528552.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255825755791) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3503776 + ... + 3576044.

It is an arithmetic number, because the mean of its divisors is an integer number (5549468760).

Almost surely, 2^255825755790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255825755790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355166000640).

255825755790 is an abundant number, since it is smaller than the sum of its proper divisors (454506245490).

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

255825755790 is a wasteful number, since it uses less digits than its factorization.

255825755790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72938.

The product of its (nonzero) digits is 44100000, while the sum is 60.

The spelling of 255825755790 in words is "two hundred fifty-five billion, eight hundred twenty-five million, seven hundred fifty-five thousand, seven hundred ninety".