255887388 has 36 divisors (see below), whose sum is σ = 647981880. Its totient is φ = 85143456.

The previous prime is 255887381. The next prime is 255887389. The reversal of 255887388 is 883788552.

It is a happy number.

255887388 is a `hidden beast` number, since 2 + 558 + 8 + 7 + 3 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255887381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15078 + ... + 27186.

Almost surely, 2^255887388 is an apocalyptic number.

It is an amenable number.

255887388 is an abundant number, since it is smaller than the sum of its proper divisors (392094492).

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

255887388 is a wasteful number, since it uses less digits than its factorization.

255887388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12706 (or 12701 counting only the distinct ones).

The product of its digits is 4300800, while the sum is 54.

The square root of 255887388 is about 15996.4804879073. The cubic root of 255887388 is about 634.8673027532.

The spelling of 255887388 in words is "two hundred fifty-five million, eight hundred eighty-seven thousand, three hundred eighty-eight".