255015765 has 36 divisors (see below), whose sum is σ = 456823692. Its totient is φ = 131598720.

The previous prime is 255015737. The next prime is 255015767. The reversal of 255015765 is 567510552.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 171950769 + 83064996 = 13113^2 + 9114^2 .

It is not a de Polignac number, because 255015765 - 2¹⁰ = 255014741 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255015767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 40297 + ... + 46193.

It is an arithmetic number, because the mean of its divisors is an integer number (12689547).

Almost surely, 2^255015765 is an apocalyptic number.

It is an amenable number.

255015765 is a deficient number, since it is larger than the sum of its proper divisors (201807927).

255015765 is a wasteful number, since it uses less digits than its factorization.

255015765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5970 (or 5936 counting only the distinct ones).

The product of its (nonzero) digits is 52500, while the sum is 36.

The square root of 255015765 is about 15969.2130363396. The cubic root of 255015765 is about 634.1456383737.

The spelling of 255015765 in words is "two hundred fifty-five million, fifteen thousand, seven hundred sixty-five".