255120516 has 120 divisors (see below), whose sum is σ = 767422656. Its totient is φ = 72394560.

The previous prime is 255120499. The next prime is 255120517. The reversal of 255120516 is 615021552.

255120516 is a `hidden beast` number, since 25 + 5 + 120 + 516 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 255120516.

It is not an unprimeable number, because it can be changed into a prime (255120517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 446511 + ... + 447081.

Almost surely, 2^255120516 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 255120516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383711328).

255120516 is an abundant number, since it is smaller than the sum of its proper divisors (512302140).

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

255120516 is a wasteful number, since it uses less digits than its factorization.

255120516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 255120516 is about 15972.4924792595. The cubic root of 255120516 is about 634.2324543091.

The spelling of 255120516 in words is "two hundred fifty-five million, one hundred twenty thousand, five hundred sixteen".