255782516 has 48 divisors (see below), whose sum is σ = 500301312. Its totient is φ = 113443200.

The previous prime is 255782479. The next prime is 255782521. The reversal of 255782516 is 615287552.

Its product of digits (168000) is a multiple of the sum of its prime factors (840).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421085 + ... + 421691.

It is an arithmetic number, because the mean of its divisors is an integer number (10422944).

Almost surely, 2^255782516 is an apocalyptic number.

It is an amenable number.

255782516 is a deficient number, since it is larger than the sum of its proper divisors (244518796).

255782516 is a wasteful number, since it uses less digits than its factorization.

255782516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840 (or 838 counting only the distinct ones).

The product of its digits is 168000, while the sum is 41.

The square root of 255782516 is about 15993.2021809267. The cubic root of 255782516 is about 634.7805602973.

The spelling of 255782516 in words is "two hundred fifty-five million, seven hundred eighty-two thousand, five hundred sixteen".