1255011888 has 160 divisors (see below), whose sum is σ = 3639767040. Its totient is φ = 369976320.

The previous prime is 1255011853. The next prime is 1255011929. The reversal of 1255011888 is 8881105521.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4035253 + ... + 4035563.

It is an arithmetic number, because the mean of its divisors is an integer number (22748544).

Almost surely, 2^1255011888 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 1255011888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1819883520).

1255011888 is an abundant number, since it is smaller than the sum of its proper divisors (2384755152).

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

1255011888 is a wasteful number, since it uses less digits than its factorization.

1255011888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 39.

The square root of 1255011888 is about 35426.1469539096. The cubic root of 1255011888 is about 1078.6551298362.

The spelling of 1255011888 in words is "one billion, two hundred fifty-five million, eleven thousand, eight hundred eighty-eight".