255057811 has 16 divisors (see below), whose sum is σ = 266742784. Its totient is φ = 243692064.

The previous prime is 255057809. The next prime is 255057821. The reversal of 255057811 is 118750552.

It is a cyclic number.

It is not a de Polignac number, because 255057811 - 2¹ = 255057809 is a prime.

It is a super-2 number, since 2×255057811² = 130108973904223442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255057821) by changing a digit.

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, 642265 + ... + 642661.

It is an arithmetic number, because the mean of its divisors is an integer number (16671424).

Almost surely, 2^255057811 is an apocalyptic number.

255057811 is a deficient number, since it is larger than the sum of its proper divisors (11684973).

255057811 is a wasteful number, since it uses less digits than its factorization.

255057811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730.

The product of its (nonzero) digits is 14000, while the sum is 34.

The square root of 255057811 is about 15970.5294527138. The cubic root of 255057811 is about 634.1804882745.

The spelling of 255057811 in words is "two hundred fifty-five million, fifty-seven thousand, eight hundred eleven".