255971479 has 4 divisors (see below), whose sum is σ = 256033800. Its totient is φ = 255909160.

The previous prime is 255971459. The next prime is 255971483. The reversal of 255971479 is 974179552.

It is a happy number.

255971479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 255971479 - 2⁷ = 255971351 is a prime.

It is a super-2 number, since 2×255971479² = 131042796122894882, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255971449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24529 + ... + 33370.

It is an arithmetic number, because the mean of its divisors is an integer number (64008450).

Almost surely, 2^255971479 is an apocalyptic number.

255971479 is a deficient number, since it is larger than the sum of its proper divisors (62321).

255971479 is an equidigital number, since it uses as much as digits as its factorization.

255971479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62320.

The product of its digits is 793800, while the sum is 49.

The square root of 255971479 is about 15999.1086939242. The cubic root of 255971479 is about 634.9368395650.

The spelling of 255971479 in words is "two hundred fifty-five million, nine hundred seventy-one thousand, four hundred seventy-nine".