255929481 has 24 divisors (see below), whose sum is σ = 385367424. Its totient is φ = 163516320.

The previous prime is 255929477. The next prime is 255929491. The reversal of 255929481 is 184929552.

It is a happy number.

255929481 is a `hidden beast` number, since 2 + 559 + 2 + 94 + 8 + 1 = 666.

It is not a de Polignac number, because 255929481 - 2² = 255929477 is a prime.

It is a super-2 number, since 2×255929481² = 130999798489858722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255929431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16576 + ... + 28046.

It is an arithmetic number, because the mean of its divisors is an integer number (16056976).

Almost surely, 2^255929481 is an apocalyptic number.

It is an amenable number.

255929481 is a deficient number, since it is larger than the sum of its proper divisors (129437943).

255929481 is a wasteful number, since it uses less digits than its factorization.

255929481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11581 (or 11578 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 255929481 is about 15997.7961294673. The cubic root of 255929481 is about 634.9021123419.

The spelling of 255929481 in words is "two hundred fifty-five million, nine hundred twenty-nine thousand, four hundred eighty-one".