255381888 has 256 divisors, whose sum is σ = 793152000. Its totient is φ = 72253440.

The previous prime is 255381883. The next prime is 255381947. The reversal of 255381888 is 888183552.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255381883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3596893 + ... + 3596963.

It is an arithmetic number, because the mean of its divisors is an integer number (3098250).

Almost surely, 2^255381888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255381888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396576000).

255381888 is an abundant number, since it is smaller than the sum of its proper divisors (537770112).

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

255381888 is a wasteful number, since it uses less digits than its factorization.

255381888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 141 counting only the distinct ones).

The product of its digits is 614400, while the sum is 48.

The square root of 255381888 is about 15980.6723262821. The cubic root of 255381888 is about 634.4489716228.

The spelling of 255381888 in words is "two hundred fifty-five million, three hundred eighty-one thousand, eight hundred eighty-eight".