255064765 has 8 divisors (see below), whose sum is σ = 307632600. Its totient is φ = 203015232.

The previous prime is 255064757. The next prime is 255064783. The reversal of 255064765 is 567460552.

It can be written as a sum of positive squares in 4 ways, for example, as 131721529 + 123343236 = 11477^2 + 11106^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255064765 - 2³ = 255064757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128490 + ... + 130459.

It is an arithmetic number, because the mean of its divisors is an integer number (38454075).

Almost surely, 2^255064765 is an apocalyptic number.

It is an amenable number.

255064765 is a deficient number, since it is larger than the sum of its proper divisors (52567835).

255064765 is a wasteful number, since it uses less digits than its factorization.

255064765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259151.

The product of its (nonzero) digits is 252000, while the sum is 40.

The square root of 255064765 is about 15970.7471647384. The cubic root of 255064765 is about 634.1862517404.

The spelling of 255064765 in words is "two hundred fifty-five million, sixty-four thousand, seven hundred sixty-five".