255081477 has 32 divisors (see below), whose sum is σ = 419604480. Its totient is φ = 134608320.

The previous prime is 255081469. The next prime is 255081503. The reversal of 255081477 is 774180552.

It is not a de Polignac number, because 255081477 - 2³ = 255081469 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255081427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4902 + ... + 23112.

It is an arithmetic number, because the mean of its divisors is an integer number (13112640).

Almost surely, 2^255081477 is an apocalyptic number.

It is an amenable number.

255081477 is a deficient number, since it is larger than the sum of its proper divisors (164523003).

255081477 is a wasteful number, since it uses less digits than its factorization.

255081477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18273.

The product of its (nonzero) digits is 78400, while the sum is 39.

The square root of 255081477 is about 15971.2703627482. The cubic root of 255081477 is about 634.2001021954.

The spelling of 255081477 in words is "two hundred fifty-five million, eighty-one thousand, four hundred seventy-seven".