255996719 has 4 divisors (see below), whose sum is σ = 279269160. Its totient is φ = 232724280.

The previous prime is 255996703. The next prime is 255996773. The reversal of 255996719 is 917699552.

It is a happy number.

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 255996719 - 2⁴ = 255996703 is a prime.

It is a super-2 number, since 2×255996719² = 131068640277529922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255996779) 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, 11636204 + ... + 11636225.

It is an arithmetic number, because the mean of its divisors is an integer number (69817290).

Almost surely, 2^255996719 is an apocalyptic number.

255996719 is a deficient number, since it is larger than the sum of its proper divisors (23272441).

255996719 is a wasteful number, since it uses less digits than its factorization.

255996719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23272440.

The product of its digits is 1530900, while the sum is 53.

The square root of 255996719 is about 15999.8974684215. The cubic root of 255996719 is about 634.9577081388.

The spelling of 255996719 in words is "two hundred fifty-five million, nine hundred ninety-six thousand, seven hundred nineteen".