255777351 has 4 divisors (see below), whose sum is σ = 341036472. Its totient is φ = 170518232.

The previous prime is 255777343. The next prime is 255777371. The reversal of 255777351 is 153777552.

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 255777351 - 2³ = 255777343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255777341) 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, 42629556 + ... + 42629561.

It is an arithmetic number, because the mean of its divisors is an integer number (85259118).

Almost surely, 2^255777351 is an apocalyptic number.

255777351 is a deficient number, since it is larger than the sum of its proper divisors (85259121).

255777351 is an equidigital number, since it uses as much as digits as its factorization.

255777351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85259120.

The product of its digits is 257250, while the sum is 42.

The square root of 255777351 is about 15993.0407052568. The cubic root of 255777351 is about 634.7762875741.

The spelling of 255777351 in words is "two hundred fifty-five million, seven hundred seventy-seven thousand, three hundred fifty-one".