255392775 has 72 divisors (see below), whose sum is σ = 525383040. Its totient is φ = 117288000.

The previous prime is 255392773. The next prime is 255392827. The reversal of 255392775 is 577293552.

255392775 is a `hidden beast` number, since 2 + 553 + 9 + 27 + 75 = 666.

It is not a de Polignac number, because 255392775 - 2¹ = 255392773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 255392775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255392773) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 44310 + ... + 49740.

Almost surely, 2^255392775 is an apocalyptic number.

255392775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

255392775 is an abundant number, since it is smaller than the sum of its proper divisors (269990265).

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

255392775 is a wasteful number, since it uses less digits than its factorization.

255392775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5477 (or 5469 counting only the distinct ones).

The product of its digits is 661500, while the sum is 45.

The square root of 255392775 is about 15981.0129528763. The cubic root of 255392775 is about 634.4579870727.

The spelling of 255392775 in words is "two hundred fifty-five million, three hundred ninety-two thousand, seven hundred seventy-five".