255220165 has 16 divisors (see below), whose sum is σ = 310913280. Its totient is φ = 201090240.

The previous prime is 255220129. The next prime is 255220171. The reversal of 255220165 is 561022552.

It is a de Polignac number, because none of the positive numbers 2^k-255220165 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310455 + ... + 311275.

It is an arithmetic number, because the mean of its divisors is an integer number (19432080).

Almost surely, 2^255220165 is an apocalyptic number.

It is an amenable number.

255220165 is a deficient number, since it is larger than the sum of its proper divisors (55693115).

255220165 is an equidigital number, since it uses as much as digits as its factorization.

255220165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 255220165 is about 15975.6115688884. The cubic root of 255220165 is about 634.3150197361.

The spelling of 255220165 in words is "two hundred fifty-five million, two hundred twenty thousand, one hundred sixty-five".