255216750 has 128 divisors (see below), whose sum is σ = 694002816. Its totient is φ = 62208000.

The previous prime is 255216749. The next prime is 255216779. The reversal of 255216750 is 57612552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 471480 + ... + 472020.

It is an arithmetic number, because the mean of its divisors is an integer number (5421897).

Almost surely, 2^255216750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255216750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347001408).

255216750 is an abundant number, since it is smaller than the sum of its proper divisors (438786066).

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

255216750 is a wasteful number, since it uses less digits than its factorization.

255216750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615 (or 605 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 255216750 is about 15975.5046868636. The cubic root of 255216750 is about 634.3121905508.

The spelling of 255216750 in words is "two hundred fifty-five million, two hundred sixteen thousand, seven hundred fifty".