255768727 has 4 divisors (see below), whose sum is σ = 258405616. Its totient is φ = 253131840.

The previous prime is 255768707. The next prime is 255768731. The reversal of 255768727 is 727867552.

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 255768727 - 2¹⁵ = 255735959 is a prime.

It is a super-2 number, since 2×255768727² = 130835283422401058, 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 (255768707) 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, 1318299 + ... + 1318492.

It is an arithmetic number, because the mean of its divisors is an integer number (64601404).

Almost surely, 2^255768727 is an apocalyptic number.

255768727 is a deficient number, since it is larger than the sum of its proper divisors (2636889).

255768727 is an equidigital number, since it uses as much as digits as its factorization.

255768727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2636888.

The product of its digits is 1646400, while the sum is 49.

The square root of 255768727 is about 15992.7710857124. The cubic root of 255768727 is about 634.7691532804.

The spelling of 255768727 in words is "two hundred fifty-five million, seven hundred sixty-eight thousand, seven hundred twenty-seven".